A kelp forest can be safeguarded by the presence of sea otters. They consume a lot of sea urchins, which controls their population and keeps the kelp forest from being destroyed. One of the foundational species of the coastal ecology is the sea otter.
What Are sea otters?Marine animals known as sea otters (Enhydra lutris) live along the coasts of the Aleutian Islands and North America's mainland up to Mexico.. Fish, sea urchins, mollusks, and crustaceans make up the majority of sea otters' diets. Sea otters are keystone species is one that has a significant, calming effect on the entire ecological community.
Sea otters are a keystone species that keeps kelp forest ecosystems in a healthy balance in addition to regulating populations of ravenous kelp grazers.To prevent floating away in the churning sea while they sleep, sea otters prefer to anchor in kelp or large seaweed. To keep each other company, they share this quality. They stick within the group as a result to keep from vanishing into the distance.It's thought that sea otters contributed to the preservation of kelp forests. This reduces the degradation of the kelp forest and helps control the population in addition to eating a lot of sea urchins. A keystone species, sea otters are crucial to the ecosystem of the coastal region.Sea otters, a form of plankton, can put pressure on sea urchins by consuming and grazing on them. Because sea urchins are grazers of kelp and are a species of plankton, sea otters can consume them and graze on them. As kelp is subjected to less grazing pressure due to the decreased urchin density, kelp forests can grow in the presence of sea otters.Kelp forestsA versatile sea vegetable, kelp can be eaten raw, cooked, or as a component of several supplements. Sushi, salads, sauces, and other dishes must all have kelp. Particularly sea otters are essential to the health of kelp forests, which are essential to the health of the bay. Sea urchins, which may completely devastate kelp beds without them, instead eat the stripes of huge kelp plants, which are not consumed by sea otters.
The Significance Of Sea Otters In Alaska’s Kelp ForestsSea otters play a key part in the kelp forests around the coast of Alaska. More than 20 distinct species of fish live in kelp forests, which also serve as spawning and breeding grounds for herring, atka mackerel, and salmon fry nurseries. Sea otters contribute to the energy flow between the ocean and kelp forest. Sea otters feed on kelp forests because they are dense, which opens up the canopy to let sunlight reach the floor and feed herbivores. Because sea otters graze on urchins, a primary pest in kelp forests, the urchin population is impacted, which harms the canopy of kelp forests.
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the formation of a cell plate is beginning acorss the middle of a cell and nuclie are reforminat at oppostie ends of the cell. What kind of cell is this
A plant cell undergoing cytokinesis is one that has a cell plate across the middle of its cell and nuclei developing at opposing ends of the cell.
So, The right answer is A; cytokinesis is the process by which a cell's cytoplasm divides into two, giving rise to two daughter cells.
The process of cytokinesis happens in both plant and animal cells, although in distinct ways. Plant cells have a cell plate in the centre, whereas animal cells have a cleavage furrow.
As a result, a plant cell that forms a cell plate across the middle of its cell and nuclei at opposing ends of the cell is experiencing cytokinesis.
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Full Question ;
The formation of a cell plate is beginning across the middle of a cell and nuclei are re-forming at opposite ends of the cell. What kind of cell is this?
a. a plant cell undergoing cytokinesis
b. an animal cell in metaphase
c. an animal cell in telophase
d. a plant cell in metaphase
e. an animal cell undergoing cytokinesis
Predict A store owner has a problem with birds building nests on top of the store’s outdoor sign. To scare the birds away, she places rubber snakes on top of the sign. Predict how the birds will react to the rubber snakes. Use the terms habituated, learn, negative effects, positive effects, and stimulus in your answer.
Answer:
the birds will have no habitat
Explanation:
I need someone to explain this answer
Answer:i just simple formulas just remember in bio emzymes live through cells and make up the cell there are millions of different enzymes
Explanation:
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A mutation in the gene coding for a single-polypeptide enzyme results in the substitution of the amino acid serine, which has a polar R group, by the amino acid phenylalanine, which has a nonpolar R group. When researchers test the catalysis of the normal enzyme and the mutated enzyme, they find that the mutated enzyme has much lower activity than the normal enzyme does. Which of the following most likely explains how the amino acid substitution has resulted in decreased catalytic activity by the mutated enzyme?
A The substitution decreased the mass of the enzyme so that the mutated enzyme binds more weakly to the substrate than the normal enzyme does.
B The substitution altered the secondary and tertiary structure of the enzyme so that the mutated enzyme folds into a different shape than the normal enzyme does.
C The substitution caused many copies of the mutated enzyme to cluster together and compete for substrate to bind.
D The substitution caused the directionality of the enzyme to change such that the amino terminus of the normal enzyme has become the carboxy terminus of the mutated enzyme.
Answer:
Bats have few natural predators -- disease is one of the biggest threat. Owls, hawks and snakes eat bats, but that’s nothing compared to the millions of bats dying from White-Nose Syndrome. The disease -- named for a white fungus on the muzzle and wings of bats -- affects hibernating bats and has been detected in 33 states and seven Canadian provinces. More than 6.5 million bats have died so far from White-Nose Syndrome. Scientists are working to understand the disease. You can help -- avoid places where bats are hibernating, and if you do go underground, decontaminate your clothing, footwear and gear.
Explanation:
the answer is c
The Grand Canyon has much more than pretty scenery. It contains an amazing diversity of rock formations with an abundance of fossils hidden within. These fossils provide clues about past environments. The sedimentary rocks exposed throughout the canyon are rich in fossils, including fossils of these marine (ocean) brachiopod shells.
QUESTION: How does fossil evidence help you explain how the Grand Canyon formed? Write your answer
The most frequent fossils are small sea animals like gastropods, brachiopods, coral, and crinoids. When mixed with sandstone, this suggests that the region was a warmer, shallow sea at the time these sediments were created. The hyphae of rocks is a result of flooding.
What are bryozoans?Little aquatic invertebrates called bryozoans dwell in colonies. Colonies of many species form exterior protective structures called exoskeletons that mimic coral prosthetic limbs. Most colonies are anchored to a structure, such as a rock or sunken branch.
How do fossils work?Any surviving indication of a once-living thing from a previous geological age is known as a fossil. Examples include exoskeletons, bones, shells, animal or microbe imprints in stone, things preserved in glass, locks, fossil pine, and DNA traces. The fossil record is a collection of all fossils.
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The diagram shows some of the structures in a human lung. Where is the carbon dioxide concentration highest? Support your answer with the scientific details required.
Answer:
W - Facilitates movement of air by expansion and contraction, X - Traps dust and helps to filter inhaled air, Y - Prevents the wind pipe from collapsing, Z - Help in exchange of gases.
Explanation:
Diaphragm is the muscle that separates the thoracic cavity from the abdomen. The diaphragm is the main muscle of respiration. Contraction of the diaphragm muscle expands the lungs during inspiration when breathing air in. The function of the nasal cavity is to warm, moisturize, and filter air entering the body before it reaches the lungs. Hairs and mucus lining the nasal cavity help to trap dust, mold, pollen and other environmental contaminants before they can reach the inner portions of the body. The trachea, or windpipe, is a 5-inch long tube made of C-shaped hyaline cartilage rings lined with pseudostratified ciliated columnar epithelium. The trachea connects the larynx to the bronchi and allows air to pass through the neck and into the thorax. The rings of cartilage making up the trachea allow it to remain open to air at all times. Gas exchange of oxygen and carbon dioxide takes place in the alveoli. Oxygen from the inhaled air diffuses through the walls of the alveoli and adjacent capillaries into the red blood cells. The oxygen is then carried by the blood to the body tissues.
The part of the lungs where Carbon Dioxide concentration is highest is in the part labeled A.
The entire diagram is called ALVEOLI.
This structure is a semi-permeable membrane wired with blood vessels on its walls. It is in these sacs that the body gives off carbon dioxide and takes in oxygen. The blood vessels which are wired around the sacs are called Capillaries.
The part labeled B is the pulmonary artery. It feeds de-oxygenated blood to the capillaries. Through the walls of the capillaries, the carbon dioxide is removed from the blood into the alveoli and takes up oxygen from the air in the alveoli. The oxygenated blood then moves back into the body via the pulmonary vein which is labeled D on the diagram.
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Which of the following is considered a monochromatic color scheme?
O Blue, red, green
O Green, blue-green, blue
O Red, pink, maroon
Orange, yellow, red
Answer:
Green, blue-green, blue
Explanation:
When I think monochromatic I think of blue hues
Part B Match the cardiac components in the left column to the blanks near their functions on the right. View Available Hint(s)
Bundle branches AV bundle Internodal pathways Purkinje fibers AV node SA node 1. Electrical link(s) between atria and ventricles
2. Convey(s) the impulse down the interventricular septum 3. Set(s) the pace for the entire heart 4 Delay(s) occurs here while atria contract 5. Link(s) between the SA node and AV node 6. Convey(s) the impulse throughout the ventricular walls
Match the blanks next to the cardiac parts in the right column inside the left column with their functions. S, internodel routes, and bundle branches
What are Purkinje fibers and bundle branches?
A cardiac muscle involved in conductivity in the heart is called the bundle of His. The branched Purkinje fibers transport the electric pulse to the ventricular. It passes through the interventricular septum and divides into the heart's right and left bundles branches.
Where are the branches of a bundle?
The bundle branches, also known as Tawara branches, sprout from the bundles of His in the ventricle of the heart. By relaying cardiac nerve impulses from the bundles of His to the myocardium, they play a crucial part in the electric cardiac conduction system.
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What is the danger of engaging in unprotected pre marital sex?
Engaging in unprotected premarital sex can be dangerous as it increases the risk of sexually transmitted infections (STIs) and unintended pregnancies, and can also have emotional and mental impacts.
Engaging in unprotected premarital sex can be dangerous because it increases the risk of sexually transmitted infections (STIs) and unintended pregnancies.
STIs, such as HIV, chlamydia, and syphilis, can be transmitted through unprotected sexual contact. Some STIs can cause serious health problems and even death if left untreated. Some STIs, like HPV or herpes, may not show any symptoms, but can still cause long-term health issues.Unintended pregnancies can also occur as a result of unprotected premarital sex. This can lead to a variety of personal, social, and economic challenges, including emotional and financial burdens, interruptions to education or career plans, and the need for parenting or adoption arrangements.Additionally, unprotected premarital sex can also have emotional and mental impacts, such as guilt, regret, or emotional distress.It's worth noting that practicing safe sex, including the use of condoms and other forms of contraception, can greatly reduce the risk of STIs and unintended pregnancies, as well as emotional and mental distress.To learn more about unprotected pre-marital sex at
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Which action has a positive effect on air tesources?
A using fossil fuels
B building new homes
C walking to work or school
D removing vegetation such as trees
Answer:
c
Explanation:
name the scientist who developed the process called National selection
Answer:
Charles Darwin
Explanation:
Answer:
Hey mate.....
Explanation:
This is ur answer....
Charles Darwin is more famous than his contemporary Alfred Russel Wallace who also developed the theory of evolution by natural selection. scientist who studies living organisms.
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Is red and brown algae more closely related to green algae ?
Answer: Red algae- Green and red algae have a likely common ancestor.
What describes the meeting of organisms that have different homozygous alleles for a single trait?
The term "monohybrid cross" refers to the mating of organisms with various identical alleles for the same characteristic of a single trait. Thus the correct answer is (A). Monohybrid cross.
Two organisms that have different variations at the same genetic locus are combined to form a monohybrid cross. In a monohybrid cross, two or more mutations at a single gene locus control the character(s) under examination. To carry out such a cross, each parent is chosen to be homozygous or true breeding for a specific trait (locus). The monohybrid ratio, also known as the distribution of second-generation (F2) offspring, is often used to determine if a cross qualifies as a monohybrid cross. It shows a cross between two separate parents, each of whom possesses distinct features and different alleles of the same set of genes. In this creature, two identical genes occur in several forms. A monohybrid cross is created when different organisms with varied identical pair genes for the same trait mate.
The complete question is:
What describes the meeting of organisms that have different homozygous alleles for a single trait?
(a). monohybrid cross
(b). dihybrid cross
(c). homozygous cross
(d). heterozygous cross
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Meiosis creates 4 daughter cells. How does the genetic information in these daughter cells compare to one another?
The genetic information of the four daughter cells created by meiosis are distinct or different from one another.
What is meiosis?Meiosis is a cell division of a diploid cell into four haploid cells, which develop to produce gametes.
Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes (the sex cells, or egg and sperm).
Meiosis produces four cells containing half the original amount of genetic information. These cells are our sex cells – sperm in males, eggs in females.
The four daughter cells are genetically distinct from one another because of a process called crossing over that occurs in the Prophase I of the division process.
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What is the benefit of having a high surface area to volume ratio?
High surface area to volume ratios operate as significant "driving forces" to accelerate thermodynamic processes that minimize free energy.
The surface area of a solid item is a measurement of the overall space that the thing's surface occupies.
The mathematical definition of surface area in the presence of curved surfaces is significantly more complex than the definition of arc length for one-dimensional curves or the definition of surface area for polyhedra (i.e., objects with flat polygonal faces), where the surface area is equal to the sum of the areas of its faces.
The surface area of smooth surfaces, such as spheres, is calculated using their parametric surface representation. This surface area definition, which is based on infinitesimal numbers, employs partial derivatives and double integration.
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What are the three ways ATP is formed?
Glycolysis , TCA cycle , Oxidative phosphorylation are the three ways ATP is formed
Adenosine triphosphate, or ATP, is the chemical symbol for energy.cellular respiration causes the mitochondria to produce ATP.It is produced during the TCA cycle, oxidative phosphorylation in the mitochondria, and glycolysis in the cytoplasm.
The metabolic process known as glycolysis is where glucose is transformed into pyruvic acid via a number of chemical events.
ATP and NADPH are used as energy storage molecules for the energy generated during these chemical processes.
The glycolysis process involves numerous enzymes and a total of ten processes.
The Krebs cycle and citric acid cycle are further names for the TCA cycle.
The activity that takes place in mitochondria is called oxidative phosphorylation.
The transfer of electrons across the mitochondrial cell membrane produces ATP.
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What does the dead bird represent in Trifles?
The canary represents Minnie Foster, the charming, fluttery youngster who was converted into the lonely, melancholy Mrs. Wright after years of neglect and emotional abuse at the hands of her husband.
Susan Glaspell's Trifles is a one-act drama. On August 8, 1916, the Provincetown Players staged it at the Wharf Theatre in Provincetown, Massachusetts. Glaspell portrayed Mrs. Hale in the original production. The drama is regularly anthologized in textbooks of American literature. The play, written during the first wave feminist movement, contrasts how women act in public and in private, as well as how they perform in front of other women vs males.
Through the absence of its main character, Mrs. Wright, Trifles addresses the issue of identity. Glaspell reveals how a person's identity is "just as much created as innate" by leaving this figure off stage. Mrs. Wright can only be perceived by the audience via the lens of the on-stage characters as they review and debate her personal life and alleged crime, and these characters may not all perceive Mrs. Wright in the same way. The spectator gets a well-rounded image of Mrs. Wright and how her identity is flexible and evolves based on the preconceptions of the other characters from the group in the farmhouse.
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What were the two key concepts that Mendel's careful selection of specific traits allowed him to develop?
Mendel's research reveals two basic truths : Physical characteristics are determined by factors (now called genes) inherited from parents, and these factors are passed on in predictable patterns from generation to generation.
Understanding heredity was made possible by a scientist named Gregor Mendel who formulated certain laws for understanding heredity known as Mendel's Laws of Inheritance. Mendel proposed three laws of inheritance are: Law of Dominance, The Law of Segregation, Law of independent assortment. Both Mendelian segregation and independent permutation are explained by the physical behavior of chromosomes during meiosis. Mendel conducted experiments on peas and examined seven main contrasting characteristics of the plant. He then conducted both experiments to determine the laws of heredity.
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FILL IN THE BLANK PLEASE
(BLANK) injections may cause unwanted problems such as infections, cartilage damage, or worsening of an existing inflammation.
Steroid injections may cause unwanted problems such as infections, cartilage damage, or worsening of an existing inflammation.
What are steroid injections?Steroid injections, also called corticosteroid injections, are anti-inflammatory medicines used to treat a range of conditions. They can be used to treat problems such as joint pain, arthritis, sciatica and inflammatory bowel disease.
Most people have steroid injections without any side effects. They can be a little uncomfortable at the time of injection, but many people feel that this is not as bad as they feared. Occasionally people notice a flare-up in their joint pain within the first 24 hours after an injection.
As a general rule, we suggest that you rest for a minimum of 2 days after a steroid injection. After 2 days, we would suggest that you can gradually build up your activity levels.
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In third-degree AV block, there is no electrical communication between the atria and ventricles, so there is no relationship between the P waves and the _________.
In third-degree, or complete, heart block there is a shortfall of AV nodal conduction, and the P waves are never connected with the QRS edifices. At the end of the day, the supraventricular driving forces produced don't lead to the ventricles.
Third-degree AV block demonstrates a total loss of correspondence between the atria and the ventricles. Without fitting conduction through the AV hub, the SA hub can't act to control the pulse, and heart result can reduce auxiliary to loss of coordination of the atria and the ventricles.
Electrical signs don't go from your atria to your ventricles with this kind. There is a finished disappointment in electrical conduction. This can bring about no heartbeat or a listless heartbeat on the off chance that a reinforcement pulse is available.
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If the changed offspring are more likely to endure (survive), then that trait is more likely to spread to future generations.
A. True
B. False
Answer:
Hey Mate......
Explanation:
This is ur answer......
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If the changed offspring are more likely to endure (survive), then that trait is more likely to spread to future generations is true statement.
What are Future generations?Future generations are hypothetical cohorts of unborn children. In order to stimulate discussion regarding intergenerational justice, future generations are compared with present and past generations and invoked.
The idea has been embraced by the environmental and sustainability movements as a means of enshrining long-term thinking in the legislation.
The idea is frequently used as a guiding principle for ecological action in indigenous thought, such as the seven generation theory credited to Iroquois tradition.
Therefore, If the changed offspring are more likely to endure (survive), then that trait is more likely to spread to future generations is true statement.
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What is a possible effect of long-term environmental changes?
Answer:
There are many possible affect of long-term environmental changes can cause a decrease in sea ice and an increase in permafrost thawing. It can also cause forced migration on organisms and can permanently affect the world (changes that are un do-able)
Answer:adaptation
Explanation:
the reasonable answer
discuss advantages and disadvantages of genetically modified crops like soya, maize ,and rice
many advantage of genetically modified crops. such as diseases free, increase yield according to own desire, we introduce vit A in Golden rice that is useful , etc
The organism in the image is a free-living one that is anchored to the bottom of ponds and streams. What is the common name of this organism
Dedarians are a type of free-living organism that are usually found anchored to the bottoms of ponds and streams. They are usually found in freshwater habitats and are related to the annelid family.
Dedarians have an elongated, segmented body and are usually transparent. They have a single set of antennae and two sets of parapodia that help them move. They are filter feeders and typically feed on small particles suspended in the water. They also use their parapodia to collect organic matter from the sediment and process it through their digestive system.
Depending on the species, dedarians have the ability to procreate both sexually and asexually. They are a beneficial part of the aquatic ecosystem as they help to keep the water clean by consuming small particles of organic matter. They also provide food for fish, amphibians, and other aquatic organisms. Dedarians are incredibly important to their environment and should be protected from environmental damage.
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explain the stages of respiration in 3 steps (you may include more). You must use the following vocabulary words in your written explanations and underline them: oxygen, carbon dioxide, raw material, products, glucose, diffuse. make sure to define and state oxygen's role in the process and explain carbon dioxide and why it's a by-product. in addition, you must talk about fermentation and how it related to cellular respiration
Answer:
Steps of Respiration
1. Oxygen is inhaled into the body and diffuses across the alveoli in the lungs, where it is taken up by red blood cells. Oxygen is a vital raw material for cellular respiration, as it is required for the production of energy in the form of ATP.
2. Glucose, a simple sugar, is broken down through a series of chemical reactions known as glycolysis, producing ATP and other by-products such as pyruvate and NADH. If oxygen is present, pyruvate is further broken down through a process called the citric acid cycle (also known as the Krebs cycle), producing even more ATP and NADH. If oxygen is not present, the breakdown of pyruvate through fermentation occurs instead.
3. Carbon dioxide is produced as a by-product of cellular respiration. It is a waste product of the breakdown of glucose and other organic molecules, and it is exhaled out of the body through the process of respiration. Fermentation is a type of anaerobic respiration that occurs in the absence of oxygen. It produces ATP through the breakdown of pyruvate, but at a lower yield compared to aerobic respiration. Fermentation also produces other by-products such as ethanol or lactic acid, depending on the type of fermentation taking place.
What poisons cause muscle weakness?
Answer:
organophosphates and Quindine Poisoning
Explanation:
Give an example of a stimulus, and explain how your nervous system and muscular system work together to respond to it. Explain in 2-4 sentences.
Answer:
Hot metal.
Explanation:
Hot metal is the stimulus that allows nervous system and muscular system work together. When the person touch the hot metal, the sensory cells present on the skin sends signals to the central nervous system through sensory neurons. The central nervous system made a decision and order to the muscles of the hand to remove hand from the hot metal or body. These orders are send to the muscles through motor neurons. In this way, both nervous system and muscular system work together.
Permanent hardness of water can be removed by adding
A. chlorine
B. washing soda
C. potassium permanganate
D. bleaching powder
Washing soda can be added to water to dissolve any lingering hardness.
The presence of dissolved calcium and magnesium ions contributes to the hardness of water. Temporary hardness and permanent hardness are the two different types of water hardness. Boiling the water makes the dissolved calcium carbonate precipitate out as calcium carbonate, which can be used to remove temporary hardness. On the other hand, permanent hardness is brought on by the existence of dissolved calcium and magnesium sulfates and cannot be eliminated by boiling.
Water hardness can be eliminated permanently with washing soda, sometimes referred to as sodium carbonate. By interacting with the dissolved calcium and magnesium ions to create insoluble precipitates, it softens the water.
A,C and D options are not correct. Chlorine is used to disinfect water, but it doesn't remove hardness. Potassium permanganate is a strong oxidizer and can be used as a disinfectant and treatment for certain water impurities, but it also doesn't change the hardness of water. Bleaching powder is used as a disinfectant and oxidizer, but it doesn't have a role in changing the hardness of water.
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How can there be 46 chromosomes in a human cell at metaphase and also 46 chromosomes in each daughter cell?
The daughter cells share the same genetic makeup as the parent cells. Somatic cells divide and then separate all 46 chromosomes through the process of mitosis. The end product is two daughter cells with 46 chromosomes.
A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. The very long, thin DNA fibers in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins. In order to preserve the integrity of the DNA molecule, these proteins condense and adhere to it with the help of chaperone proteins. These chromosomes exhibit a complicated three-dimensional structure that is crucial for controlling transcription.
A phase of cell division known as "metaphase" (mitosis or meiosis). Individual chromosomes are typically dispersed throughout the cell nucleus.
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The passage describes current research on the implications of histone methylation in plants.
Based on the information in the passage, what testable scientific question could be asked about the influence of chromosome structure on an organism's traits?
A.
How does histone methylation prevent organism growth and cell division during periods of heat stress?
B.
Is histone methylation the best way for plants to increase their expression of heat shock proteins?
C.
Will histone modifications permanently upregulate heat shock protein expression after heat stress exposure?
D.
Can histone modifications that prime a plant to survive heat stress be transmitted from parents to offspring?
Histones include a variety of basic residues that can be methylated, and the results of this methylation depend on the type of basic residue, where it is methylated, and where it is located.
What is Histone Methylation?Specific enzymes have the ability to add or remove methyl marks during the dynamic process of histone methylation. In order to influence phenotypic outcomes, other proteins can identify and bind methylated residues.
By way of DNA sequence, non-coding RNA, DNA methylation, or other post-translational signals on histone tails, histone-modifying enzymes might be attracted to particular loci.
In some cases, histone methylation can be passed down from parents to offspring and can be either dynamic or stable throughout a cell's life, including during mitosis and meiosis.
Therefore, Histones include a variety of basic residues that can be methylated, and the results of this methylation depend on the type of basic residue, where it is methylated, and where it is located.
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