HURRRRRY
Identify the structures in the cell pictured on the right.
Label A
Label B
Label C
Label D
A prokaryotic cell is labeled. Part A is the outside of the cell. Part B is the inside of the cell. Part C are the small dots inside the cell. Part D is the large swirly structure inside of the cell.
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Explanation:
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18. Which of the following would be able to pass through the membrane the easiest ?
a. Small, hydrophobic substances
b. Small, polar substance
c. Molecules like sucrose and glucose
d Small, hydrophilic molecules
Answers
The one that will be able to pass through the membrane the easiest is small, hydrophilic molecules. The correct option is d.
What is lipid bilayer?A lipid bilayer is a polar membrane composed of two layers of lipid molecules. These membranes are flat sheets that surround all cells in a continuous barrier.
The lipid bilayer acts as a barrier, keeping ions, proteins, and other molecules where they belong and preventing them from diffusing into areas where they should not be.
A bilayer is made up of two sheets of phospholipid molecules, each with all of its molecules aligned in the same direction.
Because small, nonpolar molecules are hydrophobic, they can easily cross the plasma membrane's phospholipid bilayer.
Because polar molecules and ions are hydrophilic, they cannot easily cross the plasma membrane's hydrophobic portion.
Thus, the correct option is d.
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What 2 events in nature can hinder the process of carbohydrate production? Explain your answer. Use the sentence frame: “___ can hinder carbohydrate production because ____.”
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The answers include the following below:
Stormy weather can hinder carbohydrate production because of ithe absence of sunlight.Low temperature can hinder carbohydrate production because of the low heat energy.What is Carbohydrate?This is a biomolecule which has a formula which is (CH₂O)ₙ and is the source of energy for most living organisms. It is formed by plants through photosynthesis which involves the use of water and carbondioxide as the reactants and examples include glucose, starch etc.
Factors such as Stormy weather and low temperature can hinder carbohydrate production because of inadequate sunlight. During photosynthesis, there is the need for adequate sunlight because the solar energy is trapped by the chlorophyll and is converted into chemical energy.
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A short summary of Darwins 5 Points.
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Answer:More organisms are produced than can survive because of limited resources.
— Individuals within a population vary in their traits; some of these traits are heritable -- passed on to offspring.
— Some variants are better adapted to survive and reproduce under local conditions than others.
Explanation:
imagine a population of beetles. white beetles are easier for birds to see and eat. gray beetles blend into their surroundings, so they are less visible to birds than white beetles. as a result, gray beetles are more likely to survive and reproduce, enabling the gene for gray coloration to be passed on to the next generation. this increases the frequency of genes for gray coloration in the population. which evolutionary process does this scenario describe?
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The evolutionary process that is described below that causes the frequency of genes for gray coloration in the population to increase is natural selection.
Natural selection can be described as a process in which organisms that are better able to survive in an environment are able to pass on their characteristics to their offspring.
In the scenario above, as gray species were better able to survive in an environment hence their frequency increased over time. On the other hand, the white beetles were not able to survive better in this environment and hence their frequency decreased over time. Hence, through natural selection, the gray species of beetles were favored more than the white ones.
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what do single cells or cells have that are similar to role that organs play in the human body?
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Cells give the body structure, absorb nutrients from meals, transform those nutrients into energy, and perform specific tasks. They produce copies of themselves and include DNA, the body's genetic material. The simplest functional unit of the human body is the cell.
How do cells work?The fundamental units of all living things are cells. There are many billions of cells in a human body. They give the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks.All of these plants and animals, including trees in a forest, fish in a river, horseflies on a farm, lemurs in the jungle, reeds in a pond, and worms in the soil, are comprised of the building blocks known as cells. Many living organisms are made up of countless cells cooperating with one another, similar to these examples.They give the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks. Additionally, cells have the ability to replicate themselves and contain the body's genetic material.To learn more about Cells refer to:
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The diploid number of chromosomes for human skin cells is 46. If the cells undergo mitosis, what will be the diploid number of chromosomes in the new skin cells?.
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The diploid number of chromosomes in the new cell is 46.
During mitosis, the parent cell divides into two daughter cells having exactly the same number of chromosomes and genetic makeup. There are four stages of mitosis that include prophase, metaphase, anaphase, and telophase.
In human beings, mitosis takes almost 24 hours to complete. The diploid number of chromosomes in human beings is 46 which will remain the same after mitosis. Due to this, mitosis is also known as equational division.
Therefore, the diploid number of chromosomes in the new skin cells is 46 after mitosis.
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1. How was this viral entry similar to what Dede Koswara experienced with HPV?
What does this teach us about the importance of using fresh gloves when
working with potentially sick patients?
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Dede Koswara, nicknamed the Tree Man, teaches us about the importance of wearing new gloves when working with potentially HPV patients. because if you use the same glove you can transmit diseases from a patient like Dede to another healthy one.
What is the story of Dede Koswara?He accidentally cut his knee, where a small wart grew on his leg, which eventually spread all over his body.
The solution was when he found US dermatology expert Dr. Anthony Gaspari of the University of Marlyland, he concluded that Dede's disease was caused by the human papilloma virus (HPV).
What is HPV?The human papilloma virus (HPV) is responsible for a high number of infections that, in most cases, do not present symptoms and are spontaneously regressed. This is one of the most common sexually transmitted infections worldwide. The human papilloma virus encompasses more than 200 related viruses.
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Can someone please answer this? It's due by midnight.
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Answer:
CHLOROPHYLL PHOTOSYNTHESIS LEAVES NO CLUE HERBIVORE GREEN CARBONDIOXIDE OXYGEN SIX SUGARExplanation:
Things appear green because they reflect the colour green.
Every molecule of glucose is produced with 6 oxygen molecules during photosynthesis.
6CO₂ + 6H₂O = C₆H₁₂O₆ + 6O₂
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how does photosynthesis transform solar energy into the chemical energy of sugar molecules? match the words in the left column to the appropriate blanks in the sentences on the right.
Answers
Photosynthesis will transform solar energy into organic matter thanks to a structure inside the cell called chloroplast.
How does photosynthesis transform solar energy into the chemical energy of sugar molecules?The light reactions occur in the thylakoids. Absorption of a photon boosts proton-motive force to a higher-energy state. The energy of light is used to pump an electron from water through photosystem II, an electron transport chain, and photosystem I to NADPH. During energy-releasing redox reactions in the electron transport chain, protons are pumped into the thylakoid space. ATP synthase uses this electrons to make ATP outside the thylakoid space.
The Calvin cycle occurs in the stroma.The three-carbon sugar G3P is produced and can be converted to sugars and other organic molecules, ultimately providing the chemical energy and carbon source for all of life.
Therefore, we can confirm that photosynthesis will transform solar energy into organic matter thanks to a structure inside the cell called chloroplast.
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What is missing in an environment undergoing primary succession that would be present in an environment undergoing secondary succession?
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The answer would be SOIL.
Primary succession refers to the ecological succession that occurs in a new land where life has not yet existed. It takes place after a lava flow cools and hardens into a new land, or when a glacier recedes and exposes new land. Because the land that results from these processes is totally new land, the soil must first be produced. On the other hand, secondary succession happens in a formerly inhabited area that was disturbed. The disturbance could be a fire, flood, or human action such as farming. Secondary succession is faster because the soil is already in place. In this case, the pioneer species are plants such as grasses, birch trees, and fireweed. Organic matter from the pioneer species improves the soil. This lets other plants move into the area.
pls help i don't understand it.
Answers
Answer: A = organelle
B = cell
C = organ
D = organ system
E = organism
Explanation: Starting from A and going to E each level makes up the other level. For example cells are made up of organelles and organs are made up of cells
What does the line of best fit indicate about the correlation between the variables?
Answers
Answer:
D
Explanation:
The line of best fit has a negative slope, therefore, the data has a negative correlation.
botox is a medical application using the toxin produced by clostridium botulinum to choose one: a. kill pathogenic microbes in the gut. b. relax muscle spasms. c. prevent recurrent infections. d. kill pathogenic microbes in the central nervous system.
Answers
Botox is a medical application using the toxin produced by clostridium botulinum to (b) relax muscle spasms.
Botulinum toxin, one of the most dangerous biological toxins, is a neurotoxin created by the bacterium Clostridium botulinum. C. botulinum produces eight exotoxins with unique antigens (A, B, C1, C2, D, E, F and G).
All serotypes inhibit acetylcholine, the major neurotransmitter at the neuromuscular junction, compromising with neuronal transmission and crippling limbs. Botulinum poisoning The typical duration of an injection-induced weakness is three months. The Clostridium botulinum toxin, which has paralytic properties, can be utilized to treat wrinkles and reduce muscle spasms.
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What condition causes blood glucose to remain at higher than normal concentrations in the prediabetic patient?.
Answers
Answer:
Prediabetes usually occurs in people who already have some insulin resistance or whose beta cells in the pancreas aren't making enough insulin to keep blood glucose in the normal range. Without enough insulin, extra glucose stays in your bloodstream rather than entering your cells.
Explanation:
Answer: Prediabetes usually occurs in people who already have some insulin resistance or whose beta cells in the pancreas aren't making enough insulin to keep blood glucose in the normal range. Without enough insulin, extra glucose stays in your bloodstream rather than entering your cells.
Explanation:
Which two statements explain why water is vital to sustaining a healthy
ecosystem?
A. Water molecules consist of atoms of hydrogen and oxygen.
B. All of Earth's heterotrophs depend on water as a source of energy
for life processes.
C. Autotrophs need water in order to make oxygen gas and sugars
from inorganic matter.
D. Water enables energy to move through all of Earth's systems.
Answers
Water is vital in sustaining a healthy ecosystem as the Autotrophs need water to make food from inorganic matter and water enables the transfer of energy through the earth's systems.
While water is broken down to produce oxygen during photosynthesis, oxygen and hydrogen are combined to produce water during cellular respiration. While photosynthesis utilizes carbon dioxide and releases oxygen, cellular respiration uses oxygen and creates carbon dioxide. The oxygen that is released is used by most organisms, including humans, for cellular respiration.
There are three ways that liquid water travels through land and through the earth: runoff, infiltration, and percolation (groundwater). Groundwater is absorbed by plants, and as it evaporates, it reaches the atmosphere (transpiration). Snow and ice that is solid can suddenly become gaseous (sublimation).
So, water is necessary in sustaining life on earth.
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blue poppies native to china are grown at a plant-breeding center in california. those with the thickest leaves survive and reproduce best in california's drier climate. this evolutionary adaptation of the poppies to their new environment is due to
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This evolutionary adaptation of blue poppies that allowed the thickest leaves to survive and reproduce best in California's drier climate is due to d) directional selection.
In the field of biology, directional selection can be described as a process in which the organisms having traits that are better and make them more adapted to an environment are able to survive and increase in population.
In the case above, the climate of California was drier as compared to that of China. Thick-leaved blue poppies were better able to survive in this environment as compared to the thin-leaved ones. Hence, with the passage of time, through directional selection, the thick-leaved blue poppies increased in population.
Although a part of your question is missing, you might be referring to this question:
Blue poppies native to china are grown at a plant-breeding center in California. those with the thickest leaves survive and reproduce best in California's drier climate. this evolutionary adaptation of the poppies to their new environment is due to
a) genetic drift
b) neutral variation
c) disruptive selection
d) directional selection
e) stabilizing selection
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Soil is made up of both organic and inorganic matter.
O True
O False
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Answer:
True
Explanation:
Soil consists of organic and inorganic matter
Use the image and answer the questions. Thank you!
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The transport mechanisms in the cell are osmosis, diffusion, facilitated diffusion, endocytosis, exocytosis, and molecular pumps. The molecule they transport are found in the attachment
What are the mechanisms of transport in cells?Some of the transport mechanisms of the cell include the following:
Diffusion - this is the movement of molecules of solids, liquids of gases down their concentration gradient.Facilitated diffusion is the movement of molecules through protein channels down their concentration gradient.Osmosis - this is the movement of water molecules across semi-permeable membranes.Other transport mechanisms are through molecular pumps, endocytosis, and exocytosis involving pumps.
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Explain how the products of anaerobic respiration cause your cells to be less efficient
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Products of anaerobic respiration, does not require oxygen, as a result lactic acid is produced, which lowers the pH of the cells and cause our cells to be less efficient.
ATP is vital because your muscles use the ATP to contract. During aerobic respiration, your body typically performs this function. Your cells can make a lot of ATP with oxygen and glucose, up to 38 ATP molecules per glucose molecule.
However, when you exercise vigorously, your lungs are unable to keep up, and there is insufficient oxygen to supply your muscles with the ATP they require. Your muscle cells decide to switch to anaerobic respiration on their own.
Your muscle cells use sugar to make ATP during anaerobic respiration, but they don't use oxygen. Your muscles will begin to burn as a result of the rapid conversion of lactate into lactic acid during this process. As you may have noticed, lactic acid makes it harder to exercise.
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which structure in the figure would most likely be used to form muscles and connective tissue
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Connective tissue is found in bones and muscles. Sheets and fibres of muscle cells are braided together to form muscular tissue.
Why is connective tissue important?
Muscle is a distinct type of tissue found in animals that, when triggered, contracts to exert forces on various body parts. These sheets and fibres are collectively referred to as muscles, and they control both the movement of an organism as well as several other contractile functions.
Animals have one of three types of muscle, each adapted to a certain function. These muscles are similar in structure and function, despite slight variations. Muscle tissue is usually connected by the same nerve bundles and serves a single purpose.
Therefore, connective tissue is found in bones and muscles. Sheets and fibres of muscle cells are braided together to form muscular tissue.
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What was the average for the SKIN temperature change?
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Answer:
Normal skin temperature for healthy adults ranges between 92.3 and 98.4 Fahrenheit or 33-37 Celsius, far lower than the 98.6 F average core temp. Changes in skin temperature may
PLSSS HELP IF YOU TURLY KNOW THISS
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Answer:
After pollination, these gametes move to the ovule, where they combine with female gametes, which also contain half the quota of chromosomes. This process is called fertilisation. After fertilisation, the combined cell grows into an embryo inside a seed.
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Pollination is an essential part of plant reproduction. Pollen from a flower's anthers (the male part of the plant) rubs or drops onto a pollinator. The pollinator then takes this pollen to another flower, where the pollen sticks to the stigma (the female part). The fertilized flower later yields fruit and or new flowering plant seeds respectively.
So, the plant grows flowers that are pollinated, previous to making seeds :)
dietary fiber select one: a. is only in animal sources of food b. supplies more energy, gram per gram, than fat c. is not fully digested by the human intestinal tract d. promotes tooth decay
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Dietary fiber c. is not fully digested by the human intestinal tract.
In the field of science, dietary fiber can be described as a part of food that is taken from plants that cannot be digested by humans.
Dietary fiber derived from plants is considered valuable for the body, especially in removing constipation. It is also known to lower the risk of a person from getting diabetes.
All other food nutrients have the ability to be broken down and be digested by the human body. However, the dietary fiber is not broken down and remains intact throughout the process of digestion. It is released from the colon and like other nutrients is not absorbed.
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what is the primary function of sesamoid bones? protect internal organs. protect internal organs. support the body's weight. support the body's weight. act as levers for joints. act as levers for joints. provide stability in complex joints.
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The primary function of sesamoid bones is to act as levers for joints.
Leverage is one of the sesamoid bones' functions. The sesamoids can generate extra force when pushing off during a running or jumping action since they are connected to tendons in the foot.
When the sesamoids are harmed or inflamed, discomfort can be felt on the ball of the foot. The sesamoids are situated inside ligaments under the big toe.
Running and dancing are two activities that frequently cause the inflammation of the sesamoid bones, which is a disorder known as sesamoiditis. Stopping the injury-causing activity is usually the first step in the healing process. Elevating the injured foot may also be beneficial.
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Paleontologists find a fossil ape with long arms. What type of environment can they infer it inhabited?.
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Paleontologists discover a fossil ape with long palms. Woodland of environment can they infer it inhabited.
A paleontologist is a scientist who studies the records of existence on earth via fossil documents. Fossils are the proof of beyond existence on earth and may encompass those shaped by animals our bodies or their imprints (body fossils).
Paleontology is the look at historical life, from dinosaurs to prehistoric flora, mammals, fish, insects, fungi, or even microbes. Fossil proof exhibits how organisms changed through the years and what our planet become like long in the past.
Invertebrate Paleontology: a study of invertebrate animal fossils, which includes mollusks, echinoderms, and others. Vertebrate Paleontology: have a look at vertebrate fossils, from primitive fishes to mammals. Human Paleontology (Paleoanthropology): The look at prehistoric human and proto-human fossils.
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Paleontologists find a fossil ape with long arms. The environment can they infer it inhabited is Woodland.
A paleontologist is a scientist who researches the records of existence on earth via fossil report. Fossils are the evidence of beyond life on the planet and can consist of those fashioned from animal our bodies or their imprints (frame fossils).
Paleontology also has some overlap with archaeology, which commonly works with items made by means of human beings and with human remains, while paleontologists are interested in the characteristics and evolution of humans as a species.
Palenolology, like most technological know-how careers, isn't always particularly nicely paid. it's a lot of work, frequently in harsh conditions, and recognition is not going. Paleontologists ought to scramble for grants to fund their paintings, and frequently need to gift to a couple of sources to get the money for their expeditions.
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individuals of a fish species living in a river have varying oxygen level requirements. a nearby factory accidentally releases pollutants into the river, causing oxygen levels in the water to decrease. within a few generations, the percentage of fish with lower oxygen requirements has increased in the river. conversely, the percentage of fish with higher oxygen requirements has decreased. what form of selection has taken place in this population?
Answers
Individuals of a fish species living in a river have varying oxygen level requirements,causing oxygen levels in the water to decrease, directional selection has taken place in this population.
In a population, directional selection occurs when individuals with features on one side of the mean survive longer or reproduce more frequently than those on the other. Natural selection known as directional selection occurs when one extreme phenotype is selectively favored. In other words, those who possess this feature have a higher chance of having children. The chemical element with the atomic number 8 and symbol O is oxygen in this sort of selection. The extremely reactive oxygen, which belongs to the chalcogen group in the periodic table, is also necessary for surgery and trauma. Infants, the elderly, and pregnant women are vulnerable populations who require oxygen on a daily basis.
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jane has a son who has duchenne muscular dystrophy, which is inherited as an x-linked recessive trait. at a molecular level, the disease is due to lack of the protein dystrophin. jane participates in a study to look at dystrophin levels in various muscles, so she has cells sampled from 10 different muscles. some cells make dystrophin, and some do not. an explanation for this finding is that
Answers
A possible explanation for this finding is that in some cells but not others, the x chromosome with the mutation is turned off. Duchenne Muscular Dystrophy is a heritable condition that causes gradual muscle weakness, usually in boys.
- More about Duchenne muscular dystrophy :
- Frequent falls, difficulty getting up or running, a waddling gait, large calves, and learning impairments are all signs of Duchenne muscular dystrophy.
- Although there is no cure, corticosteroids and physical therapy can help reduce symptoms and enhance quality of life.
- Researchers have discovered some of the mutated genes, which are brought on by a genetic mutation on one of the mother's X chromosomes. A genetic defect in the production of dystrophin, a protein that prevents muscle fibers from degrading when exposed to enzymes, results in Duchenne muscular dystrophy.
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Amoebas are single celled organisms that take in particles, and sometimes smaller organisms, as food by enclosing the food particle
in its membrane. The amoeba requires energy for this process.
Which structure in an amoeba produces the energy it needs?
O vesicle
O nucleolus
O vacuole
O mitochondria
Answers
Answer:
mitochondria
Explanation:
The bar graph below shows the total amount of product from a chemical reaction performed at
three different temperatures. The same enzyme was involved in each case.
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Answer:Quizlet
Question
The bar graph (P 58) shows the total amount of produce from a chemical reaction performed at three different temperatures. The same enzyme w
Answer · 0 votes
35 C created the most amount of product (2 mg), 25 C creates
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Quizlet
Question
a graph shows the total amount of product from a chemical reaction performed at three different temperatures. the same enzyme was involved i
Answer · 0 votes
•at 25 degrees C there was 1 mg of product •at 35 degree
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Chegg
Question
CHEMISTRY Effects of Temperatures on a Reaction Interpreting a Graph The bar graph shows the total amount of product formed from a chemical reaction that was performed at three different temperatures for the same time period. The same enzyme was involved each time in the chemical reaction 2 Describe the results at each temperature. Total Product (mg) 1
Answer · 1 vote
Interpretation from graph: From the graph it is clear that at first with rise in temperature product increases , but after a certain temperature (35oC) , product decreases with ri...
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Course Hero
Question
Can you help me answer it please? I need it before 9pm today! Can...
Answer · 1 vote
Reactants are starting molecules that undergo chemical change in a chemical reaction. Based on diagram 3, an arrow in a chemical reaction represents a chemical change. It means that the reactants in the left side undergoes a reaction leading to the right-side products. The molecules that come after the chemical change are called products. They are the results of the chemical change of the reactants. Based on diagrams 5-8, another word for reactants is "substrates". Looking at our diagrams, you can see that the substrates attach to the enzyme in the left side. Therefore, in order for the reaction to take place with an enzyme, the reactants or substrate must attach to the enzyme. After the reaction takes place, you can see in diagrams 5-8 that the products formed leave the enzyme. The enzyme detaches the products from itself. You can see various drawings of enzyme showing different shapes of active sites. This is because each enzyme has different active sites. In diagram 10, there are 3 …
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Explanation:
Mutations can be beneficial, neutral, or harmful in an organism, changing their fitness in a population. which of these scenarios model how mutations can be detrimental to an organism ? select all that apply
Answers
Mutations can be categorized into three main groups based on how they affect fitness: the "good" or advantageous mutations that improve fitness, the "bad" or deleterious mutations that reduce fitness, and the "indifferent" or the neutral mutations are usually remain unaffected by selection because their effects are very small
One of the primary mechanisms driving the evolution is mutation, it increases population variability and promotes the evolutionary changes . For instance,
the consequences of mutations frequently depend on other mutations present or absent their effects can also depend on the environment the fate of mutations may depend on size and structure of population, which can severely limit the ability of selection to discriminate among the three types (making all seem nearly ‘indifferent’)mutations' fate can also be depend on fate of others that have more pronounced effects and are in close proximity on the same chromosome.To this purpose, we should take into account a variety of molecular and phenotypic characteristics of evolution and the extant populations, and ask how these characteristics may get described in terms of mutational rates and types, as well as how they are impacted by factors that are going to determine their futures.
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