TRUE / FALSE. genetic mutations invariably cause harm to people who inherit them.

Answers

Answer 1

FALSE. While some genetic mutations can lead to health problems or disorders, not all mutations are harmful. Some mutations may even provide a survival advantage or have no impact on a person's health.

Mutations are alterations in the genetic material of an organism that can occur spontaneously or be induced by external factors. They can involve changes in a single nucleotide (point mutations) or larger segments of DNA. Mutations can have various effects, including no noticeable impact, causing genetic disorders, or providing advantages for adaptation. Some mutations can be harmful, leading to diseases such as cancer, while others can be beneficial, conferring resistance to diseases or improving an organism's fitness. Mutations are a fundamental driver of evolution, providing the genetic variation upon which natural selection acts, shaping the diversity of life on Earth.

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Answer 2
Final answer:

Genetic mutations do not always cause harm when inherited. Some mutations can be advantageous or neutral.

Explanation:

The statement 'genetic mutations invariably cause harm to people who inherit them' is false. While some mutations can be harmful, there are also advantageous and neutral mutations.

Advantageous mutations can improve an individual's survival and reproduction, like the mutation that confers resistance to insecticides in mosquitos or the mutation for black coloration in peppered moths during the Industrial Revolution. Neutral mutations have no effect on survival or reproduction.

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Related Questions

Which of the following summarizes the main idea in paragraph 5?
A.Our environment will always change, and most of these changes take hundreds of years to occur.
B.Populations of a species living in different environments will develop different adaptations.
C. An oil spill causes both short- and long-term changes in the environment.
D. Many scientists believe that environmental change may have made dinosaurs become extinct.

Answers

Answer:

The correct answer is C

Explanation:

Which of the following summarizes the main idea in paragraph 5?A.Our environment will always change, and most of these changes take hundreds of years to occur.B.Populations of a species living in different environments will develop different adaptations.C. An oil spill causes both short- and long-term changes in the environment.D. Many scientists believe that environmental change may have made dinosaurs become extinct.

Which animal is the Frantic Fox closest relative?
Responses

1. Coyote

2. Domestic Dog

Answers

Answer:

1. Coyote

Explanation:

The closest relative of the frantic fox is the coyote. They are both members of the Canidae family, which also includes wolves, jackals, and dingoes. Frantic foxes and coyotes share many similarities, including their physical appearance, behavior, and diet. Both animals are medium-sized canines with long snouts, pointed ears, and bushy tails. They are also both omnivorous, meaning they eat both plants and animals. Frantic foxes and coyotes are both social animals that live in packs. They are also both very adaptable and can live in a variety of habitats, including forests, deserts, and grasslands.

Domestic dogs are also members of the Canidae family, but they are not as closely related to frantic foxes as coyotes are. Domestic dogs are descended from wolves, while frantic foxes are descended from a different type of canid called the golden jackal. Domestic dogs and frantic foxes share some similarities, such as their physical appearance and diet. However, they also have some important differences, such as their behavior and social structure. Domestic dogs are typically more friendly and trusting of humans than frantic foxes are. They are also more likely to live in close association with humans, while frantic foxes are more likely to live in the wild.

Binding of release factors to mRNA, which of the following events does not occur in the nucleus of a eukaryotic cell?
a) Transcription
b) RNA processing
c) Translation
d) Splicing
e) None of the above

Answers

The correct answer is c) Translation. Translation occurs in the cytoplasm of a eukaryotic cell after the processed mRNA has been transported out of the nucleus. Transcription, RNA processing, and splicing all occur in the nucleus of a eukaryotic cell. During transcription, RNA is synthesized from DNA. RNA processing involves modifications to the pre-mRNA transcript, such as the addition of a 5' cap and a poly-A tail, and the removal of introns.

Splicing is the process by which introns are removed and exons are joined together to form a mature mRNA molecule. Once the mature mRNA is exported to the cytoplasm, translation can occur, which involves the binding of release factors to the mRNA to facilitate the release of the polypeptide chain from the ribosome.

In the context of binding of release factors to mRNA, the event that does not occur in the nucleus of a eukaryotic cell is:

c) Translation

Transcription, RNA processing, and splicing all take place in the nucleus. Transcription involves the synthesis of RNA from a DNA template, RNA processing involves the addition of a 5' cap and a 3' poly-A tail, as well as the removal of introns, and splicing is the process of removing introns and joining exons together. Translation, on the other hand, occurs in the cytoplasm, where the mRNA is used as a template to synthesize proteins. Release factors play a role in translation by recognizing stop codons and facilitating the release of the newly synthesized protein.

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what sort of environment (hypotonic, hypertonic, isotonic) did the extra fertilizer create around the roots of the corn? a. hypotonic b. hypertonic c. isotonic

Answers

The extra fertilizer created a hypertonic environment around the roots of the corn.


In this context, a hypertonic environment refers to a solution or medium with a higher concentration of solutes compared to the cells or roots it surrounds. When excess fertilizer is added to the soil, it increases the concentration of solutes around the roots of the corn plants. This higher concentration creates a hypertonic environment. As a result, water tends to move out of the plant cells into the surrounding soil in an attempt to equalize the concentration. This can lead to dehydration and water stress in the plant, affecting its growth and overall health.

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generalizations are greatly influenced by the: a. population error. b. populations means. c. population percentages. d. preponderance of evidence.

Answers

Generalizations are greatly influenced by the (d) preponderance of evidence. In research and data analysis, generalizations refer to the process of drawing conclusions or making broad statements about a population based on a limited sample.

Generalizations are broad statements that are made about a population based on observations or data collected from a smaller sample of that population. These statements are often used to draw conclusions about the entire population based on the characteristics of the sample that was studied. The accuracy of these generalizations is greatly influenced by several factors, including the population error, population means, population percentages, and the preponderance of evidence.
The population error refers to the degree of difference between the characteristics of the sample and the characteristics of the entire population. If the sample is not representative of the population, the generalizations made based on the sample will not be accurate. Therefore, it is important to ensure that the sample is selected randomly and is representative of the population.
The population means and percentages also have an impact on the accuracy of generalizations. If the sample mean or percentage is significantly different from the population mean or percentage, the generalizations made based on the sample will not be accurate. Therefore, it is important to ensure that the sample is large enough to accurately represent the population.
Finally, the preponderance of evidence is another important factor in making accurate generalizations. If there is a large amount of evidence supporting a particular conclusion, it is more likely to be accurate than if there is only a small amount of evidence.
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Which of the following surgical procedures would treat obesity? a. gastric stapling b. anastomosis c. laproscopic cholecystectomy d. herioplasty.

Answers

The answer to the question would be: a. Gastric stapling

The surgical procedure that is commonly used to treat obesity is gastric stapling, also known as gastric bypass surgery or bariatric surgery. This procedure involves reducing the size of the stomach and rerouting the digestive system to promote weight loss. It restricts the amount of food the stomach can hold and alters the absorption of nutrients. Gastric stapling is an effective method for significant and sustained weight loss in individuals with severe obesity.

Anastomosis, on the other hand, refers to the surgical connection of two structures, such as blood vessels or segments of the intestine. It is a common technique used in various surgeries but is not specific to obesity treatment.

Laparoscopic cholecystectomy is the surgical removal of the gallbladder and is primarily performed to treat gallbladder-related conditions, such as gallstones or inflammation. It is not directly associated with obesity treatment.

Herioplasty is not a recognized surgical procedure in the context of obesity treatment or any other medical condition.

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Microbiology may perform the following laboratory test for urologic disorders:
A. PPD
B. BUN
C. C&S
D. FBS

Answers

Answer:

C. C & S

Explanation:

Microbiology may perform C & S test for urologic disorders.

Hope this helps!

Microbiology may perform the laboratory test C&S (Culture and Sensitivity) for urologic disorders.

C&S is a diagnostic test that involves culturing a patient's urine sample to identify the bacteria causing the infection and determining the most effective antibiotic treatment.

This test helps in the diagnosis and treatment of urinary tract infections, which are common urologic disorders.


C&S stands for Culture and Sensitivity. This test is commonly used in microbiology to diagnose infections, including those related to the urinary tract. It involves isolating the causative microorganism (usually bacteria) from a patient's urine sample and then determining the most effective antibiotics to treat the infection.

C&S test:

1. Collect a urine sample from the patient.
2. Inoculate the sample onto agar plates to grow the bacteria.
3. Incubate the plates at a specific temperature and time to allow bacterial growth.
4. Identify the grown bacteria based on their colony morphology and other tests.
5. Perform an antibiotic sensitivity test to find out which antibiotics are effective against the isolated bacteria.
6. Report the results to the healthcare provider, who will then prescribe appropriate antibiotics for the patient.

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elect the correct descending taxonomic hierarchy (left to right):
a. family, order, class
b. family, genus, species
c. genus, species, family
d. class, phylum, order
e. kingdom, domain, phylum

Answers

The correct descending taxonomic hierarchy (left to right) is: c. genus, species, family.

Taxonomic hierarchy, also known as biological classification, is a system used to organize and categorize living organisms into various levels of classification based on their shared characteristics and evolutionary relationships. The taxonomic hierarchy consists of the following levels, from broadest to most specific:

Domain: The highest level of classification, which categorizes organisms into three domains: Archaea, Bacteria, and Eukarya. This classification is based on cellular structure and genetic composition.

Kingdom: The second level of classification, which divides organisms into major groups based on fundamental characteristics. Examples include Animalia, Plantae, Fungi, Protista, Archaea, and Bacteria.

Phylum: Within each kingdom, organisms are further divided into distinct phyla based on shared characteristics. For instance, in the animal kingdom, phyla include Chordata, Arthropoda, and Mollusca.

Class: Phyla are further subdivided into classes, representing a more specific level of classification. Examples of classes include Mammalia, Insecta, and Aves.

Order: Within each class, organisms are grouped into orders based on shared characteristics and evolutionary relationships. Examples include Carnivora, Coleoptera, and Primates.

Family: Orders are further divided into families, which group together closely related organisms. For instance, the family Felidae includes all species of cats.

Genus: Families are subdivided into genera, representing a more specific level of classification. Genera consist of closely related species that share common ancestry. For example, the genus Panthera includes lions, tigers, and leopards.

Species: The most specific level of classification, species refers to individual organisms that share common characteristics and can interbreed to produce fertile offspring. Species are typically designated by a two-part scientific name, such as Homo sapiens for humans.

It's important to note that this hierarchical classification system can be further expanded with additional levels, such as subspecies and varieties, to provide even more specific classifications within a species.

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assuming a constant wind speed what would increase the torque

Answers

Assuming a constant wind speed, increasing the length of the lever arm or the size of the blades would increase the torque generated by a wind turbine.

The torque generated by a wind turbine is influenced by various factors. One of the key factors is the length of the lever arm or the radius of the turbine blades. By increasing the length of the lever arm, the distance between the axis of rotation and the point where the force is applied becomes larger. This increased distance amplifies the torque produced by the wind turbine.

Similarly, the size of the turbine blades also plays a significant role in generating torque. Larger blades have a greater surface area exposed to the wind, allowing them to capture more kinetic energy and convert it into rotational force. This larger area creates a higher pressure difference between the front and back sides of the blades, resulting in increased torque.

Therefore, increasing either the length of the lever arm or the size of the blades can enhance the torque produced by a wind turbine when the wind speed remains constant. These factors are important considerations in the design and optimization of wind turbines for efficient energy conversion.

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a. DNAse footprinting
b. Mobility shift assays
c. Chromatin Immunoprecipitation Assay
d. All of the above
e. None of the above

Answers

A BECAUSE DNA FOOTPRINTING IS IT

Long-term immunity to diseases such as measles occurs because a. memory mast cells produce antibodies in response to pathogens entering the body.
b. neutrophils remain in the blood to phagocytize any new measles pathogens. c. plasma cells remain in the immune system to protect the body. d. helper T cells continue to produce cytokines indefinitely. e.memory B cells are produced in response to specific pathogens.

Answers

Long-term immunity to diseases such as measles occurs because memory B cells are produced in response to specific pathogens. These memory B cells can recognize and respond to the same pathogen more quickly and effectively if it enters the body again, providing long-term immunity. so,The correct answer is: e. Memory B cells are produced in response to specific pathogens.

Long-term immunity to diseases such as measles occurs because memory B cells are produced in response to specific pathogens. These memory B cells can quickly produce antibodies upon re-exposure to the same pathogen, providing a faster and more effective immune response. It is important to note that cells such as memory T cells also play a role in long-term immunity, but they are not mentioned as options in the given question.
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An American straight whiskey must be distilled from what percentage of a single grain?

Answers

According to the regulations set by the Alcohol and Tobacco Tax and Trade Bureau (TTB), an American straight whiskey must be distilled from at least 51% of a single grain.
An American straight whiskey must be distilled from a minimum of 51% of a single grain. This percentage ensures the distinctive character and flavor of the primary grain in the final product.An American straight whiskey must be distilled from a minimum of 51% of a single grain.

According to the regulations set by the U.S. Alcohol and Tobacco Tax and Trade Bureau (TTB), in order for a whiskey to be labeled as "straight" in the United States, it must meet certain criteria. One of the requirements is that the whiskey must be distilled from a mashbill (the mixture of grains used for fermentation) that contains at least 51% of a single grain.

The remaining percentage of the mashbill can consist of other grains or a combination of other grains, such as corn, rye, wheat, or barley. This allows for some flexibility in the production process and allows distillers to create a variety of flavor profiles by incorporating different combinations of grains.

However, it is important to note that the specific grain used as the majority component of the mashbill will influence the character and taste of the resulting whiskey. For example, a bourbon must have a mashbill that is at least 51% corn, while a rye whiskey must have a mashbill that is at least 51% rye grain.

To be classified as an American straight whiskey, the whiskey must be distilled from a minimum of 51% of a single grain. This requirement ensures that the whiskey has a predominant flavor profile associated with the chosen grain while allowing for the inclusion of other grains to add complexity and variety to the final product.

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between two differen
A close relationship
kinds of organisms is known as

Answers

A close dating between two one of a kind kinds of organisms is referred to as symbiosis.

Symbiosis is a large time period that describes the interplay and relationship among two organisms of different species, which may be beneficial, harmful, or impartial for one or both of the organisms concerned.

There are different styles of symbiotic relationships:

Mutualism: Both organisms enjoy the relationship. An instance is the connection among bees and plant life, where bees gather nectar from flora for food whilst inadvertently pollinating the flowers.

Commensalism: One organism advantages, while the other is neither harmed nor benefited. For example, positive species of birds building nests in bushes enjoy the protection and guide of the tree, even as the tree is unaffected.

Parasitism: One organism blessings at the same time as the opposite is harmed. An instance is a tick attaching itself to a mammal to feed on its blood, benefiting the tick however harming the host.

Thus, this is the close relationship kinds of organisms.

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which part of a whole grain typically remains after processing

Answers

After processing, the outer layer of a whole grain usually remains intact. This outer layer is known as the bran and is the fiber-rich part of the grain that is packed with nutrients like B vitamins, antioxidants, and minerals like iron, zinc, and magnesium.

The bran is what gives whole grains their characteristic brown color and also contributes to their nutty flavor and chewy texture.
During processing, the grain is often stripped of its bran and germ layers, leaving only the starchy endosperm. After processing, the outer layer of a whole grain usually remains intact. This outer layer is known as the bran and is the fiber-rich part of the grain that is packed with nutrients like B vitamins, antioxidants, and minerals like iron, zinc, and magnesium. This process is called refining, and it results in a grain product that is less nutritious and higher in calories than its whole grain counterpart. For example, white flour is made by refining wheat grains, which removes the bran and germ layers.
While refining can give grains a smoother texture and longer shelf life, it also removes many of the nutrients that make whole grains so beneficial for our health. That's why it's important to choose whole grain products whenever possible, like whole wheat bread, brown rice, and whole grain pasta. These foods are more filling and can help regulate blood sugar levels, reduce inflammation, and lower the risk of chronic diseases like heart disease and diabetes.

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what harvests energy from sunlight to rearrange molecules into sugar

Answers

The process that harvests energy from sunlight to rearrange molecules into sugar is called photosynthesis.

Photosynthesis is the metabolic process by which plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose (sugar) and oxygen. It is a vital process for life on Earth as it serves as the primary means of converting solar energy into chemical energy that can be used by organisms.

During photosynthesis, light energy is captured by pigments such as chlorophyll in the chloroplasts of plant cells. This energy is used to drive a series of chemical reactions that result in the synthesis of glucose. The process involves the absorption of carbon dioxide from the atmosphere through tiny openings called stomata on the leaves, and the release of oxygen as a byproduct.

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Photosynthesis is the process by which plants and certain other organisms convert energy from sunlight into chemical energy in the form of glucose. This energy can be used immediately or stored for later use by cells. ATP and NADPH are key molecules involved in this energy conversion and storage process.

In the process of photosynthesis, energy from the sun is harvested by plants and used to convert carbon dioxide and water into glucose. ATP (Adenosine Triphosphate) and NADPH (Nicotinamide Adenine Dinucleotide Phosphate) are created in the initial process called light-dependent reactions. These molecules, which temporarily store energy, are subsequently used in the light-independent reactions to rearrange carbon dioxide (CO2) molecules into glucose, a type of sugar.

The glucose molecules produced via photosynthesis can then be used by cells as a form of cellular energy, either immediately or stored for later use. The energy from a glucose molecule is harvested in a series of complex chemical reactions within the cell, ultimately resulting in the production of additional ATP, which is used to power further chemical reactions within the cell.

This process of photosynthesis, which converts sunlight into usable cellular energy, is a key biological system that supports life on Earth. It is not only applicable to plants, but also to other organisms like photoautotrophs that can also capture energy from light and convert it into usable bioenergy.

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which statements are correct (select all that apply): question 3 options: spermatagonia undergo mitosis during puberty oogonia undergo mitosis during puberty meiosis i is complete prior to ovulation meiosis ii occurs in the seminiferous tubules spermiogenesis occurs in the seminiferous tubule

Answers

Based on the given options, the correct statements are:

Spermatagonia undergo mitosis during puberty.

Meiosis I is complete prior to ovulation.

Spermiogenesis occurs in the seminiferous tubule.

Spermatagonia undergo mitosis during puberty: Spermatagonia are the diploid cells in the testes responsible for producing sperm. During puberty, spermatagonia undergo mitosis, which results in the formation of primary spermatocytes.

Meiosis I is complete prior to ovulation: In female reproductive physiology, meiosis I is completed just before ovulation. This is when the primary oocyte divides into a secondary oocyte and a polar body.

Spermiogenesis occurs in the seminiferous tubule: Spermiogenesis is the final stage of sperm development and occurs within the seminiferous tubules of the testes. During spermiogenesis, the round spermatids mature and differentiate into spermatozoa.

The statement "oogonia undergo mitosis during puberty" is incorrect. Oogonia, the diploid cells in the ovaries, undergo mitosis during fetal development, not during puberty. After mitosis, oogonia differentiate into primary oocytes, which are arrested in prophase I until ovulation.

The statement "meiosis II occurs in the seminiferous tubules" is also incorrect. Meiosis II in male reproductive physiology occurs in the epididymis and not within the seminiferous tubules. Meiosis II is the final step in sperm maturation, leading to the production of mature spermatozoa.

In conclusion, the correct statements are that spermatagonia undergo mitosis during puberty, meiosis I is complete prior to ovulation, and spermiogenesis occurs in the seminiferous tubule.

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a field ecologist wants to determine the interactions of various populations of organisms living in a large grassland field. which method is best for conducting this study?

Answers

The best method for a field ecologist to determine the interactions of various populations of organisms in a large grassland field is through field observations and surveys.

To study the interactions of populations in a grassland field, field observations and surveys provide the best method. Field ecologists can directly observe the organisms in their natural habitat, recording their behaviors, interactions, and spatial distribution. This approach allows for a comprehensive understanding of the ecological dynamics within the grassland ecosystem.

Field observations involve systematically observing and recording the behaviors, feeding patterns, reproductive activities, and interactions among different species. Surveys can be conducted to collect data on population densities, species richness, and composition. These surveys may include techniques such as transect sampling, quadrat sampling, or mark-recapture methods to estimate population sizes.

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after passing through a healthy kidney urine composition is approximately

Answers

After passing through a healthy kidney, urine composition is approximately 95% water and 5% waste products such as urea, creatinine, and various ions and electrolytes. The exact composition of urine can vary depending on factors such as diet, hydration levels, and overall health status. In addition to waste products, urine may also contain trace amounts of hormones, drugs, and other substances that have been filtered from the blood. Overall, the kidneys play a crucial role in maintaining the body's fluid balance and eliminating waste products from the body. Any disruptions to this process can lead to a range of health problems, including kidney disease, urinary tract infections, and electrolyte imbalances.
After passing through a healthy kidney, urine composition is approximately as follows:

1. Water: Urine is about 95% water, which is necessary for carrying waste products out of the body.

2. Urea: Urea is a waste product resulting from the breakdown of proteins, and it accounts for roughly 2-2.5% of urine composition.

3. Chloride, Sodium, and Potassium: These electrolytes help regulate the balance of fluids in the body and contribute to approximately 1-2% of urine composition.

4. Creatinine: Creatinine, a waste product from muscle metabolism, is typically present in urine at levels of around 0.2%.

5. Other substances: Various other substances, such as uric acid, ammonium, and small amounts of proteins, hormones, and metabolites, make up the remaining 0.3-1% of urine composition.

In summary, after passing through a healthy kidney, urine composition is approximately 95% water, 2-2.5% urea, 1-2% electrolytes, 0.2% creatinine, and 0.3-1% other substances.

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what accounts for the similarity between seaweeds and plants

Answers

The similarity between seaweed and plants is due to convergent evolution.

Seaweeds have no roots, no stems, no leaves, and no flowers. Instead, they have holdfast, stipe, and blade structures, and sometimes float. Because seaweeds live in the ocean and not on land, their structures differ from those of land plants.

Seaweed is the largest and most complicated of the marine forms. Seaweed is classified as “plant-like” because it photosynthesizes, and “simple” because it doesn’t have the organized structure of higher plants, such as leaves or vascular tissue. Eukaryotes are all algae.

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the three components of total energy expenditure are: group of answer choices basal metabolic rate, physical activity, and thermic effect of food basal metabolic rate, thermic effect of food, and adaptive thermogenesis basal metabolic rate, physical activity, and adaptive thermogenesis basal metabolic rate, physical activity, and sleep activity

Answers

The three components of total energy expenditure are basal metabolic rate, physical activity, and thermic effect of food.

These factors determine how many calories our bodies burn in a day. Basal metabolic rate is the energy required for basic functions such as breathing and circulation. Physical activity refers to any movement we do, from walking to formal exercise. The thermic effect of food is the energy used to digest, absorb, and metabolize the food we eat. By understanding these three components, we can better manage our energy intake and expenditure to maintain a healthy weight. The three components of total energy expenditure are basal metabolic rate, physical activity, and thermic effect of food. Basal metabolic rate (BMR) represents the energy needed to maintain vital functions at rest. Physical activity refers to energy expended during various types of exercise or daily activities. The thermic effect of food is the energy required for digestion, absorption, and metabolism of nutrients. Together, these components determine the total energy expenditure of an individual.

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Final answer:

Total energy expenditure comprises Basal metabolic rate (BMR), Physical Activity, and the Thermic Effect of Food. BMR is the energy used for basic organ functions, while physical activity and the thermic effect of food account for the other energy needs.

Explanation:

The three components of total energy expenditure are: Basal Metabolic Rate (BMR), Physical Activity, and the Thermic Effect of Food. The BMR is the energy needed for basic functions of the organs which make up around 70% of the daily energy expenditure. Physical activity accounts for another 20% which can increase based on the level of activity and the lean body mass a person has. The remaining 10% is for thermoregulation or the body's temperature control, commonly termed as the Thermic effect of food.

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TRUE / FALSE. formal channels of communication are typically faster than the grapevine.

Answers

False. Formal channels of communication are not typically faster than the grapevine. The statement that formal channels of communication are typically faster than the grapevine is false.

In most cases, the grapevine, which refers to informal communication networks, can transmit information more quickly than formal channels of communication. The grapevine operates through social interactions, conversations, and informal networks among individuals within an organization. It is known for its rapid spread of information, often through personal conversations, emails, or social media platforms.

On the other hand, formal channels of communication follow established organizational structures and hierarchies. They include official channels such as memos, emails, reports, and meetings. While formal channels are essential for transmitting official information, they can sometimes be slower due to the need for approvals, adherence to protocols, and hierarchical layers that information needs to pass through. Additionally, formal channels may involve multiple individuals or departments for decision-making, which can further delay the communication process.

Therefore, in terms of speed, the grapevine is often faster than formal channels as it bypasses some of the formalities and hierarchies associated with official communication. However, it is important to note that the grapevine may not always provide accurate or reliable information, as it relies on informal sources and can be prone to rumors and distortions.

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which muscle can easily be damaged during makeup application

Answers

The muscle that can easily be damaged during makeup application is the orbicularis oculi muscle. This muscle surrounds the eye and is responsible for blinking and closing the eyelids.

When applying makeup around the eye area, it is important to be gentle and avoid tugging or pulling on the skin as this can cause damage to the muscle. Additionally, using harsh or abrasive makeup products can also cause irritation and damage to the muscle. Overall, taking a gentle and careful approach to makeup application around the eyes can help to prevent damage to this important muscle.

So, the muscle that can be easily damaged during makeup application is the orbicularis oculi.

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Final answer:

The orbicularis oculi muscle which surrounds the eye can be easily damaged during makeup application if excessive pressure or sharp objects are mishandled.

Explanation:

The muscle that can easily be damaged during makeup application is the orbicularis oculi muscle. This important muscle surrounds the eye and controls the closing of the eyelid. When applying makeup, particularly around the eye area, if excessive pressure is used or sharp objects like eyeliner pencils and mascara brushes are mishandled, you may accidentally injure this muscle leading to eye problems. Therefore, it's critical to be extra careful when applying makeup around the eyes not to cause any preventable damage.

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Ascending paralysis with no loss of sensation is characteristic of
a.
multiple sclerosis.
b.
Guillain - Barré syndrome.
c.
myasthenia gravis.
d.
amyotrophic lateral sclerosis.

Answers

Ascending paralysis with no loss of sensation is characteristic of Guillain - Barré syndrome.

Ascending paralysis with no loss of sensation is a classic symptom of Guillain - Barré syndrome, which is an autoimmune disorder that affects the nerves. This condition causes the immune system to attack the nerves, resulting in weakness and numbness that typically starts in the legs and moves upward.

                                 It is important to note that while multiple sclerosis, myasthenia gravis, and amyotrophic lateral sclerosis can all cause paralysis, they do not typically cause ascending paralysis with no loss of sensation as is seen in Guillain - Barré syndrome.
                                         Guillain-Barré syndrome is a rare neurological disorder in which the body's immune system mistakenly attacks the peripheral nerves, leading to weakness, numbness, and tingling sensations. The paralysis usually begins in the legs and then ascends to affect the upper body and arms, but it does not involve loss of sensation.

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Type your question here
Determine the electron geometry, molecular geometry and polarity of N2O (N central).
Determine the electron geometry, molecular geometry and polarity of N2O (N central).
eg=trigonal planar, mg=bent, polar
eg=tetrahedral, mg=bent, polar
eg= linear, mg=linear, polar
eg=tetrahedral, mg=linear, nonpolar
eg=linear, mg=linear, nonpolar

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The electron geometry, molecular geometry and polarity of N2O (N central) eg=linear, mg=linear, nonpolar

To determine the electron geometry, molecular geometry, and polarity of N2O (N central), follow these steps:

1. Draw the Lewis structure of N2O. The central nitrogen atom is triple-bonded to the other nitrogen atom and has a single bond with the oxygen atom.
 
  N≡N-O

2. Determine the electron geometry (eg) by considering the number of electron groups around the central atom. In this case, there are three electron groups around the central nitrogen atom (two from the triple bond and one from the single bond). This gives an electron geometry of trigonal planar.

3. Determine the molecular geometry (mg) by considering the arrangement of the atoms in the molecule. The central nitrogen atom has two bonded atoms (N and O) and no lone pairs. This gives a molecular geometry of linear.

4. Determine the polarity of the molecule by analyzing the electronegativity of the atoms and the symmetry of the molecule. The electronegativity difference between N and O creates a polar bond, but the linear molecular geometry leads to these polarities canceling each other out, resulting in a nonpolar molecule.

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discuss how inhaling increased amounts of co2 affects pulmonary ventilation.

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The movement of air into and out of the lungs, or pulmonary ventilation, can be affected by increased carbon dioxide (CO2) inhalation. Blood CO2 attention is one of the primary factors that regulate the respiratory system and influences breathing.

The respiratory system is typically controlled by a feedback mechanism depending on blood CO2 levels. When blood CO2 levels rise, the body responds by increasing lung ventilation to eliminate the additional CO2 and keep blood oxygen (O2) and pH levels within normal ranges.

The outcome of greater CO2 intake is a rise in the blood's CO2 concentration, which causes the condition known as hypercapnia. Hypercapnia is recognized by chemoreceptors in the brain, namely in the medulla oblongata and carotid bodies. Breathing rate and depth rise as a result of these chemoreceptors' communication with the brain's respiratory centers.

Enhanced ventilation, also known as hyperventilation, helps the body rid itself of surplus CO2 by increasing the amount of CO2 released with each breath. By bringing CO2 back into balance and reducing the level of CO2 in the blood, hyperventilation regulates pulmonary ventilation.

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Stacey made a list of things she saw in a cell she was observing under the microscope. Stacey wrote down the following description of what she observed.
1. A large nucleus is visible in the center of the cell.
2. The cell is surrounded by a cell membrane.
3. The cell has the shape of a rectangle.
4. What appears to be a large space can be seen inside the cell.
5. The cell does not show any movement.
6. Increasing the light source reveals green dots inside the cell.
Which statements did Stacey use to conclude that she was looking at a plant cell?
A. 1, 3, and 5
B. 3, 4, and 6
C. 2, 4, and 6
D. 1, 5, and 6

Answers

Stacey used statements 2, 4, and 6 to conclude that she was looking at a plant cell.

Statement 2 mentions that the cell is surrounded by a cell membrane. This is a characteristic shared by both plant and animal cells, so it does not provide a specific clue.

Statement 4 mentions the presence of a large space inside the cell. This refers to the central vacuole, which is a distinctive feature of plant cells. Animal cells generally have smaller vacuoles or do not have them at all, making this observation indicative of a plant cell.

Statement 6 describes the presence of green dots inside the cell when the light source is increased. These green dots are likely chloroplasts, which contain the pigment chlorophyll responsible for photosynthesis. Chloroplasts are found exclusively in plant cells, enabling them to carry out photosynthesis and produce energy from sunlight.

Therefore, the combination of statement 2 (cell membrane), statement 4 (large space inside the cell), and statement 6 (green dots) leads to the conclusion that Stacey was observing a plant cell. The correct answer is C. 2, 4, and 6.

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Which of the following statements is true regarding the health of the elderly? Depression is untreatable for the elderly. Falls are the most common cause of injuries among the elderly. The elderly need more vitamins and minerals than younger people. The elderly require more calories than younger people.

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The statement that is true regarding the health of the elderly is that falls are the most common cause of injuries among the elderly.

Depression is not untreatable for the elderly (statement 1). Depression can affect individuals of any age, including the elderly, and there are various treatment options available, including therapy and medication. Seeking appropriate professional help can significantly improve the well-being of elderly individuals with depression.

While falls are a significant concern among the elderly population, it is important to note that falls are not the only cause of injuries (statement 2). Elderly individuals may also experience injuries due to other factors such as accidents, chronic health conditions, or age-related frailty. However, falls do pose a substantial risk, and preventive measures such as regular exercise, home modifications, and medication review can help reduce the incidence of falls among the elderly.

Regarding nutritional needs, it is not accurate to state that the elderly need more vitamins and minerals than younger people (statement 3) or that they require more calories than younger people (statement 4) as a general rule. Nutritional requirements vary among individuals based on factors such as overall health, activity levels, and specific medical conditions. While some elderly individuals may have increased nutrient needs or decreased caloric needs due to factors like reduced metabolism or certain health conditions, it is not universally true for all elderly individuals. Individualized nutritional assessments and recommendations are necessary to determine the specific needs of each person.

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the process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called

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The process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called eutrophication.

Eutrophication occurs when there is an excessive input of nutrients, such as nitrogen and phosphorus, into a body of water, often from sources like agricultural runoff or sewage discharge.

These excess nutrients promote the rapid growth of algae and other aquatic plants, leading to an algal bloom. As the algae die and decompose, bacteria and other microorganisms consume oxygen during the decomposition process, resulting in oxygen depletion in the water. This oxygen depletion can have detrimental effects on aquatic organisms, leading to fish kills and other ecological imbalances.

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explain why the dental assistant needs to study oral pathology

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Studying oral pathology is essential for dental assistants to identify and diagnose various dental diseases, such as gum disease, tooth decay, and oral cancer, and provide quality care. It also allows them to educate patients on proper oral hygiene practices and preventive measures to maintain good oral health.

A dental assistant needs to study oral pathology for the following reasons:
1. Early detection of diseases: Understanding oral pathology helps dental assistants recognize signs and symptoms of various dental and oral diseases, allowing for early detection and timely treatment.
2. Patient education: Dental assistants can educate patients about oral health, disease prevention, and proper oral hygiene practices, reducing the risk of developing oral pathologies.
3. Assisting the dentist: A dental assistant with knowledge of oral pathology can effectively support the dentist during diagnosis and treatment planning by providing accurate and relevant information.
4. Monitoring treatment progress: Studying oral pathology enables dental assistants to monitor patients' progress during treatment, identifying any complications or changes in the condition that may require adjustments in the treatment plan.
5. Enhancing professional skills: Gaining knowledge of oral pathology can help dental assistants become more competent and confident in their roles, contributing to better patient care and improved overall job satisfaction.

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which of the following is a sign or symptom of a brown recluse spider bite? severe muscle pain ulcer formation at the bite site faint bite marks heavy sweating

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The pain is often described as a burning sensation and can be accompanied by redness and swelling. Other symptoms may include fever, chills, nausea, and vomiting. In some cases, ulcer formation at the bite site may occur. This can lead to the formation of a necrotic lesion, which may require medical treatment.

Severe muscle pain is a sign or symptom of a brown recluse spider bite. This pain can be localized to the area of the bite or spread throughout the body. The pain is often described as a burning sensation and can be accompanied by redness and swelling. Other symptoms may include fever, chills, nausea, and vomiting. In some cases, ulcer formation at the bite site may occur. This can lead to the formation of a necrotic lesion, which may require medical treatment. Faint bite marks and heavy sweating are not typically associated with brown recluse spider bites. If you suspect you have been bitten by a brown recluse spider, seek medical attention immediately to prevent complications.

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