If your dog mates with another dog that is homozygous recessive for both genes and lacks both traits, you should expect 0% of puppies to have both of these dominant traits (tan saddle and curly hair)
What is Mendelian inheritance?Mendelian inheritance or Mendelian genetics refers to the fundamental principles of inheritance that Gregor Mendel proposed in his studies of pea plants' genetic patterns. Mendel is regarded as the father of genetics, as he laid the foundation for the study of inheritance patterns in offspring.
Mendel's studies on pea plants' inheritance patterns established several fundamental principles of heredity, including dominance, segregation, and independent assortment. Mendelian inheritance principles dictate how traits are transmitted from parents to offspring, and in which ratios, dominant and recessive alleles will be inherited.
If a heterozygous parent (Tt) and a homozygous recessive parent (tt) are crossed, the expected ratio of offspring with the dominant trait to those without the dominant trait is 1:1.Only the genotype Tt will result in the dominant trait. Since your dog is heterozygous for both dominant alleles, the genotypic ratio of its offspring with the homozygous recessive dog will be Tt:tt= 1:1.
As a result, none of the offspring will have both of these dominant traits (tan saddle and curly hair) that you see in your dog, and the expected percentage of puppies with both of these dominant traits will be 0%.
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Pls help thank you will mark the brainliest
Answer:
Here are the biological classifications in order from most specific (1) to most general (8):SpeciesGenusFamilyOrderClassPhylumKingdomDomainNote: The phrase "King Philip Cried Out For Good Soup" can be helpful to remember the order of Kingdom, Phylum, Class, Order, Family, Genus, and Species, but it does not include the most general category, Domain.
Explanation:
A ______ is a stack of _______ that provides the chloroplasts with increased surface area.
A. thylakoid, granum
B. granum, thylakoid
C. granum, chlorophyll
D. thylakoid, chlorophyll
The answer is B. Granum, thylakoid.
You are working with a population of snails. During the mating season, you observe that individuals in the population will only mate with others of the same genotype (for example, Mm individuals will only mate with Mm individuals). There are only two alleles at this locus (M is dominant; m is recessive); you have determined that the frequency of the M allele = 0.4 and that selection acts against homozygous recessive individuals. Consider what will occur in this population over the course of many generations, and evaluate the following statement.
TRUE OR FALSE: Allele frequencies will stay the same, but genotype frequencies will change over time.
The statement 'Allele frequencies will stay the same, but genotype frequencies will change over time' is FALSE because In this scenario, allele frequencies will change over time due to the selection against homozygous recessive individuals.
As a result, the frequency of the M allele will increase and the frequency of the m allele will decrease. This will also cause a change in genotype frequencies, as the proportion of Mm individuals will decrease and the proportion of MM individuals will increase. Therefore, both allele and genotype frequencies will change over time in this population.
Here is a step-by-step explanation:
1. Selection acts against homozygous recessive individuals (mm) in the population.
2. This will cause a decrease in the frequency of the m allele over time, as fewer individuals with this allele will survive to reproduce.
3. As the frequency of the m allele decreases, the frequency of the M allele will increase.
4. This will also cause a change in genotype frequencies, as the proportion of Mm individuals will decrease and the proportion of MM individuals will increase.
Therefore, both allele and genotype frequencies will change over time in this population.
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Slides: Are there striations across the width of the muscle cells? Number of Nuclei? What are the size, shape, and arrangement of fibers? What function occurs as a result of the contractions in the selected muscle? (see page 3 of the lesson) What is the relationship between structure and function in the selected muscle? (see page 3 of the lesson)
Muscle - Human Cardiac
Intestines - Outer Wall Detail (smooth muscle)
Slide 1: Muscle- Skeletal Longitudinal Section
and
Slide 2: Muscle-Skeletal Cross Section
(The questions are for the muscles listed aboved)
In skeletal muscle cells, there are striations across the width of the muscle fibers due to the arrangement of myofilaments.
The number of nuclei in each muscle cell is typically multiple, as each cell is formed by the fusion of multiple myoblasts during development.
What is the composition of skeletal muscles?The size, shape, and arrangement of muscle fibers can vary depending on the type of muscle.
Skeletal muscles are composed of long, cylindrical fibers that are arranged in parallel bundles.
Cardiac muscle fibers are shorter and more branched, forming a network of interconnected cells. Smooth muscle fibers are spindle-shaped and are not organized into distinct bundles or striations.
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Which statement best describes a keystone species?
A. It has little genetic variation.
B. It has an extremely high population.
C. It remains unaffected by all environmental changes.
D. It has a strong influence on the ecosystem.
E. It’s the first species to populate a new ecosystem.
The right response is D. A keystone species is one that, in spite of its relatively low abundance, has a disproportionately substantial impact on the composition and operation of an ecosystem.
What is an example of a keystone species?The intricate web of connections that makes up an ecosystem is held together by keystone species. They could be microbes, plants, or animals. Sea otters, wolves, elephants, and starfish are a few examples of keystone species.
What traits distinguish keystone species?A keystone species is any animal, plant, fungus, or even bacteria that significantly alters its ecology. Due to the ability of their influence on other species to alter entire ecosystems, they play a significant role in their natural settings.
What are the keystone species in India?In the jungles of India and Nepal, the tiger is the dominant predator. The tiger is a keystone species, which is more significant.
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List 6 pros and 6 cons of a virus in the human body
Answer:
Viruses keep us alive. They form part of the body's microbiome and safeguard our health. They can be harnessed to treat illness, deliver vaccines, and diagnose infections. They're wielded as research tools to illuminate biology and disease and develop new drugs.
Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, Ebola, and COVID-19. Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves.
MS74 students love going to outdoor lunch, but meteorologists reported a potential heavy downpour midday today. Which device would Mr. Contarsy best rely on in order to determine whether or not students can have outdoor lunch around noon and why?
Mr. Contarsy would best rely on a weather radar in order to determine whether or not students can have outdoor lunch around noon.
A weather radar uses radio waves to detect precipitation and can provide information on the location, intensity, and movement of weather systems. This information can be used to predict when and where precipitation will occur.
In contrast, other weather instruments, such as a thermometer or barometer, only measure specific aspects of the weather, such as temperature or air pressure, and do not provide information on precipitation
By monitoring the weather radar, Mr. Contarsy can determine if and when a heavy downpour is likely to occur. This will allow him to make an informed decision about whether or not to cancel outdoor lunch or to move it indoors.
Additionally, a weather radar can provide up-to-date information on the weather conditions, allowing Mr. Contarsy to adjust his plans accordingly. For example, if the radar indicates that the rain will pass quickly, he may decide to delay lunch for a short period of time to wait out the storm.
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Which of the following describes a limiting factor that can slow the growth of a population? An even ratio of males and females Shorter gestational period Less predation and disease Less water availability
The correct answer is "Less water availability." A limiting factor is any resource or environmental condition that restricts the growth, abundance, or distribution of a population within an ecosystem.
What is less water availability?
In this case, less water availability can reduce the carrying capacity of an ecosystem, leading to reduced growth and reproduction rates, increased competition for limited resources, and ultimately population decline.
Even ratios of males and females, shorter gestational periods, and less predation and disease can all contribute to increased population growth and abundance, rather than limiting it.
Less water availability can have severe consequences on an ecosystem. It can lead to reduced plant growth, reduced productivity of aquatic habitats, altered food webs, increased competition for limited resources, and ultimately, population decline for various species. This can have cascading effects on the entire ecosystem, including changes to nutrient cycling, carbon storage, and biodiversity.
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Papaya plants get infected with the papaya ringspot virus, which causes the leaves to have dark spots and the fruit to have bumps. Scientists introduce the DNA of the ringspot virus into the genome of papaya plants to develop genetically modified (GM) papaya plants that are resistant to papaya ringspot virus. Which is a likely ethical concern regarding the use of GM papaya? A GM papaya plants might produce fruits with fewer nutrients. B Consumers may unknowingly consume unwanted GM papaya. C GM viruses may evolve to harm other plants. D The soil in which GM papaya plants are grown may become infertile.
If scientists introduce the DNA of the ringspot virus into the genome of papaya plants to develop genetically modified (GM) papaya plants that are resistant to papaya ringspot virus, then a likely ethical concern regarding the use of GM papaya is B Consumers may unknowingly consume unwanted GM papaya.
What are GM crops?Genetically modified crops are organisms whose DNA has been modified by genetic engineering techniques in a laboratory of molecular biology, which raises concerns for a sector of the population.
Therefore, with this data, we can see that GM crops may lead to concerns regarding their consumption.
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in a green plant, the majority of photosynthesis takes place in
In a green plant, the majority of photosynthesis takes place in the chloroplasts of the leaves.
Specifically, the chlorophyll pigments within the chloroplasts absorb light energy from the sun and use that energy to convert carbon dioxide and water into glucose (a simple sugar) and oxygen gas. This process is known as photosynthesis and is crucial to the survival of plants, as well as many other organisms that rely on them for food and oxygen. While photosynthesis occurs in other parts of the plant, such as the stem and roots, the leaves are the primary site of photosynthesis in most green plants.
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fill in the blank. when rent is paid in advance for 2 years, it is appropriately recorded as a(n)___ , whereas when rent is paid and used during one month, it is appropriately recorded as a(n) ___. (enter one word per blank)
When rent is paid in advance for 2 years, it is appropriately recorded as a(n) asset, whereas when rent is paid and used during one month, it is appropriately recorded as a(n) expense.
An asset is something that has value and is owned by a business. When rent is paid in advance for 2 years, it is considered an asset because the business has the right to use the rented space for the next 2 years.
Any resource that a company or other economic organisation owns or controls is considered an asset in financial accounting. Anything that has the potential to provide positive economic value qualifies. The ownership value that can be turned into cash is represented by assets.
An expense is a cost that is incurred in order to generate revenue. When rent is paid and used during one month, it is considered an expense because the business is using the rented space to generate revenue during that month.
An expense is something that calls for the transfer of funds, or fortune in general, from one person or organisation to another as payment for a good, service, or other type of cost. Rent is a cost to a tenant. Tuition is a cost to parents or students.
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Why do we use Punnett Squares today? Explain in your words
how it works? Use the back of the page to illustrate.
Punnett squares are used today as a tool in genetics to predict the probability of offspring inheriting specific traits from their parents.
How do Punnett squares work?It works by crossing two individuals and then arranging their possible gametes (sperm and egg cells) along the top and side of a square grid. By combining the gametes in the grid, the potential genetic makeup of the offspring can be visualized and predicted.
Each gamete is represented by a letter or symbol to denote its allele (variant form of a gene). For example, if we are studying a trait that is controlled by a single gene with two possible alleles, we might represent the dominant allele with a capital letter (e.g., A) and the recessive allele with a lowercase letter (e.g., a). The possible gametes for an individual with genotype Aa would be represented as half A and half a.
To use the Punnett square, we simply write the possible gametes of one parent along the top of the square and the gametes of the other parent along the side of the square. We then fill in the boxes of the grid with the combination of gametes that would result from each pairing. By counting the number of boxes that contain each possible genotype (the genetic makeup of an individual), we can calculate the expected proportions of offspring that would have each genotype.
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In complete dominance, the dominant character appears with 50% in the second generation, when one pair of pure recessive allelomorphic characters are inherited from the father and hybrid dominant allelomorphic from the mother
How far is this statement correct? With explaination
Answer: This statement is incorrect. In complete dominance, the dominant allele completely masks the expression of the recessive allele in the phenotype of heterozygous individuals. When a pair of pure recessive allelomorphic characters are inherited from the father and hybrid dominant allelomorphic from the mother, all of the offspring will be heterozygous with one dominant allele and one recessive allele. Therefore, all of the offspring will show the dominant phenotype, and the frequency of the dominant phenotype will be 100% in the second generation, not 50%.
For example, if the pure recessive allele is represented as "aa" and the dominant allele is represented as "A", the father would contribute "aa" and the mother would contribute "Aa" to the offspring. The offspring would inherit one allele from each parent, resulting in the genotypes of "Aa" for all offspring. In complete dominance, the dominant allele "A" would mask the expression of the recessive allele "a", resulting in all offspring having the dominant phenotype. Therefore, the statement that the dominant character appears with 50% in the second generation is not correct.
Which property of a plant species would be most useful for meeting the scientists goal
The most useful property of a plant species for scientists studying new crops and wanting to apply selective breeding to develop a useful crop plant would be its genetic diversity.
For a team of scientists studying several plant species that they think could become new farm crops and want to apply selective breeding to develop one of the species into a useful crop plant, the most useful property of the plant species would be its genetic diversity.
Genetic diversity refers to the variety of genes, alleles, and genetic traits present within a population or species. This genetic variation is the raw material that plant breeders use to develop new crop varieties with desirable traits, such as higher yield, disease resistance, or better nutritional content.
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(complete question)
A team of scientists is studying several plant species that they think could become new farm crops. The scientists want to apply selective breeding to develop one of the species into useful crop plants. Which property of a plant species would be MOST USEFUL for meeting the scientists’ goal?
A women with blood type AB is planning to have a family with a man who is blood type O. How many different phenotypes could their children have?
A- 2
B- 1
C- 3
D- 4
What is the relationship between the centrioles and spindle? Why is the spindle important for this process?
The centrioles are the main components of the spindle, a structure that forms during cell division. The spindle is important because it is responsible for separating the chromosomes during cell division.
Centrioles and spindle in detailsThe machinery of the cell, including centrioles and spindles, is essential for cell division. Microtubule-based cylindrical cell structures called centrioles aid in the organization of the spindle fibers.
During cell division, the spindle, which is made up of a network of microtubules, serves as a scaffold for chromosomal movement. In order to appropriately split the chromosomes, the centrioles coordinate the spindle's microtubules.
The spindle is necessary for the accurate segregation of the genetic material and ensures that the two resulting daughter cells receive the correct number of chromosomes.
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How does the structure of some freshwater plants help them
maintain their water balance?
A. Stomata are present on the top surfaces of the leaves instead of on the underside.
B. Thick dermal tissue on roots and stems prevents water from seeping in.
c. Large root systems increase the amount of water the roots absorb.
D. Small leaves limit the amount of water loss by transpiration.
Option C would be the most appropriate answer as it explains how large root systems increase the amount of water the roots absorb in freshwater plants.
What is Stomata?
Stomata (singular: stoma) are tiny pores or openings found on the leaves, stems, and other aerial parts of plants. They are surrounded by specialized cells called guard cells, which regulate the opening and closing of the stomata.
One such adaptation is the presence of large air-filled spaces in their tissues, such as in the leaves, stems, and roots, which provide buoyancy and help the plant stay afloat in water. These air-filled spaces also serve as storage areas for oxygen, which is needed for respiration, and as conduits for the exchange of gases and nutrients between the plant and the water. Additionally, some freshwater plants have developed root systems that are adapted to absorb nutrients and water from the surrounding water, which can be poor in nutrients compared to soil. Therefore, option C would be the most appropriate answer as it explains how large root systems increase the amount of water the roots absorb in freshwater plants.
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Which statement explains one reason why unconformities occur
The absolute deepest part of the ocean is
Answer: The challenger deep
Explanation: the Challenger Deep is In the Pacific Ocean, somewhere between Guam and the Philippines, lies the Marianas Trench, also known as the Mariana Trench. At 35,814 feet below sea level, its bottom is called the Challenger Deep — the deepest point known on Earth
Answer:
The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam.
Explanation:
An object traveling 200 m/s slows down to 50 m/s, in 5 seconds. Calculate the acceleration of the object.
Answer:
-30 m/s^2
Explanation:
The acceleration of the object can be calculated using the formula:
a = (v_f - v_i) / t
where v_i is the initial velocity, v_f is the final velocity, and t is the time taken for the change in velocity.
Given that the object is traveling at an initial velocity of 200 m/s and a final velocity of 50 m/s, and it takes 5 seconds to slow down, we have:
a = (50 m/s - 200 m/s) / 5 s
a = (-150 m/s) / 5 s
a = -30 m/s^2
Therefore, the acceleration of the object is -30 m/s^2. The negative sign indicates that the object is decelerating, or slowing down.
pls help T-T
Iwnsbss
Answer:
C!
Explanation:
The most common treatment for leukemia is chemotherapy, as stated in the passage, so that would be step 1. If chemotherapy isn't enough, a bone marrow donor is needed in order to introduce healthy leukocytes that can take over - meaning step 2 is finding a donor match. Step 3 would then be to introduce the healthy leukocytes from the donor into the patient's bloodstream, and step 4 has the leukocytes traveling from the bloodstream (step 3) to the bone marrow, where they can begin replicating.
J Assigment Make a Cuart or I sease. Couse. Symphony modes of transmission prevention Controle, vecto (if there is) of :- - - Tape warm Tuber losis Minialia - ✓ - Diahnoea (AWD). Cholera Typhoid STOS sights Gronowhea Chanchord
The chart that provides information on six different diseases: tapeworm, tuberculosis, malaria, diarrhoeal diseases including cholera and AWD, typhoid, and sexually transmitted infections (STIs) is given in the image attached.
What is the chart about?For each disease, the chart includes the mode or modes of transmission, how to prevent infection, how to control the spread of the disease, and whether or not there is a vector (an organism that spreads the disease, such as a mosquito).
Therefore, For tapeworm, the mode of transmission is ingestion of infected meat or eggs. To prevent infection, it is important to cook meat thoroughly and practice proper sanitation, such as washing hands after handling raw meat. To control the spread of the disease, infected individuals should be treated, and contact tracing can help identify others who may have been exposed. There is no vector for tapeworm.
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Amensalism and commensalism are similar in that one of the organisms in the relationship is completely unaffected: it is neither harmed not helped by it. Given this information, what differentiates amensalism from commensalism?
A.
An amensal relationship requires the unaffected organism to provide a service to the other organism.
B.
An amensal relationship requires the unaffected organism to provide a resource to the other organism.
C.
An amensal relationship benefits the other organism in some way.
D.
An amensal relationship harms the other organism in some way.
An amensal relationship harms the other organism in some way.
The correct option is D.
Where do organisms live?An organism forms its operational hub in a habitat. A habitat provides the ideal conditions for an organism to survive. It refers to just about everything an animal needs in order to find and gather food, select a mate, and successfully reproduce.
Where are organisms made of?Every living creature is made up of cells, which are seen as the fundamental building blocks of life. Even single-celled organisms are complex! The cellular organelles and structures found inside each cell are made up of molecules, which are created by atoms. In multicellular organisms, similar cells create tissues.
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Is it possible for two different compounds to be made from the same two elements? Why or why not?
Yes, it is feasible to create more than compounds using the same ingredients.When multiple elements mix in diverse ratios to generate more than one compound, it is because elements constantly combine in a predetermined ratio to create a compound.
Can separate chemical elements be combined to form two different substances?When two or more chemical elements (elements or compounds) are mixed together, a mixture is one in which the various components are easily distinguishable visually and physically.
Can 2 or more of an identical components be united to form a molecule?A molecule is made up of two or even more atoms that are chemically fused together, whether they be of the same element or distinct ones.
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[30 POINTS!]
————————————————
Which organism is most closely related to sac fungi based on the phylogenetic tree?
[A]. Bread molds
[B]. Club fungi
[C]. Chytrids
[D]. Mycorrhizal fungi
———————————-
Your lab group hypothesizes that psychological stress has a greater impact on heart rate than physical stress. Does the data collected support this hypothesis?
The psychological stress has a greater impact on heart rate than physical stress is true and is followed by the given hypothesis.
The most frequent way to study cardiovascular responsiveness to stress is in the laboratory. Due to the numerous restrictions of functioning in controlled conditions, laboratory stressors may have limited ecological relevance. This presentation will concentrate on paradigms that include measuring cardiovascular responses to stress in real time with ambulatory monitors.
The most widely employed paradigm in this subject is to assess the reaction to a specific real-life stressor, such as taking a test event giving a presentation. A broader approach has attempted to develop a measure of CV variability by testing the premise that more reactive individuals will have a more varied heart rate or blood pressure.
According to the widely accepted cardiovascular reactivity theory, those who exhibit increased cardiovascular reactivity (CVR) to stress are more likely to acquire cardiovascular disease (CVD) (Krantz and Manuck, 1984; Treiber et al., 2003). The majority of investigations on the cardiovascular response to stress are undertaken in a controlled laboratory setting. There are strong practical and scientific reasons for this, based on measurement, design, and control difficulties, but the laboratory is a particularly challenging place in which to research stress.
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What would you need to add to your brain model in order to create a model of the central nervous system? To which brain area would you connect it?
And my second question is " 4. If you were to add the diencephalon to your model, where would it go? "
Answer:
First question:
To create a model of the central nervous system, you need to add the spinal cord and connect it to the brainstem in your brain model. The brainstem is responsible for many vital functions and helps integrate and regulate the body's functions.
Second question: The diencephalon goes above the brainstem in the model, contains important structures involved in various functions, and completing the central nervous system representation.
Explanation:
1. The spinal cord is connected to the brainstem, which is the lower part of the brain that is continuous with the spinal cord. Therefore, you would connect the spinal cord to the brainstem in your model of the central nervous system. The brainstem is responsible for many vital functions, such as breathing, heart rate, and blood pressure, and is also involved in the transmission of sensory and motor signals between the brain and the body.
By adding the spinal cord to your brain model and connecting it to the brainstem, you would create a model of the central nervous system that includes both the brain and spinal cord, and their integration and regulation of the body's many functions.
2. If you were to add the diencephalon to your model, it would go above the brainstem, in between the brainstem and the cerebral hemispheres. The diencephalon is a part of the forebrain, and it contains several important structures, such as the thalamus, hypothalamus, and epithalamus. These structures are involved in various functions, including sensory perception, regulation of autonomic processes, and control of the endocrine system. Adding the diencephalon to the model would provide a more complete representation of the central nervous system and its many functions.
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which statement best describes the role of the lung in gas exchange? responses it produces oxygen as a waste product of cellular respiration. it produces oxygen as a waste product of cellular respiration. it extracts oxygen from the atmosphere for use by body cells. it extracts oxygen from the atmosphere for use by body cells. it takes in oxygen from the bloodstream. it takes in oxygen from the bloodstream. it provides carbon dioxide to the capillaries.
The statement that best describes the role of the lung in respiration is: "it extracts oxygen from the atmosphere for use by body cells".
Gas exchange is the transfer of oxygen and carbon dioxide between living organisms and their environment. This is done by the respiratory system in animals, and in plants by photosynthesis. In animals, oxygen is extracted from the atmosphere by the lungs, which is then circulated throughout the body via the bloodstream.
Similarly, carbon dioxide is removed from the bloodstream by the lungs and released into the atmosphere. This process is critical for the survival of all living organisms.
The primary function of the lungs is to facilitate respiration, which is the process of exchanging gases between the atmosphere and the body's cells. This is achieved through a complex system of airways and blood vessels that allow for the transfer of gases in and out of the bloodstream.
Specifically, the lung extracts oxygen from the atmosphere through the trachea, bronchi, and bronchioles, which are then delivered to the bloodstream via the pulmonary capillaries. The carbon dioxide that is produced by cellular respiration is then removed from the bloodstream by the lungs and released into the atmosphere.
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URGENT WILL GIVE BRAINLIEST
Create a question that starts with a command word from the syllabus. Your question needs to be based on the topic of ENERGY SECURITY OR ENERGY INSECURITY.
*Create a POINT VALUE and a MARK SCHEME for the question
*Example of command words: Describe, Explain, Compare, State, Outline, Discuss, Suggest
Answer:
describe everyday events such as shaving, ear peircing, and brushing teeth so that they do not sound like "primitive" customs.
Explanation:
Only need help with #1
Answer:
A) Homologous chromosomes line up at the cell equator.
B) Crossing over can occur during synapsis.
G) The chromosome number is reduced from 2n to n.