What happens to sister chromatids in meiosis II? Choose the correct answer.


They duplicate.

They are divided.

They do not take part.

They remain together.

Answer:

Excisting cells

Explanation:

Answer:

Hello again :)

The population will increase because they eat it.

Answer:

China, Russia, Kazakhastan, Mexico, Nimibia, Greenland, South Africa, Canada, Australia

Answer:

They camouflage

Explanation:

The peppered moths adapt to their surroundings. They blend in with their surroundings to avoid being eaten by their predators. Blending in with their surrounding also helps them to sneak up on and catch their prey.

I'm not too sure why they lay 100 eggs at a time but i think it's because the parents want to increase the survival of their eggs. Eggs sometimes are eaten by other animals and the parents want at least a few to survive.

A process in which recipient cells acquire genes from free DNA molecules in the surrounding medium is called Transformation.

Change is the cycle by which beneficiary cells obtain qualities from free DNA atoms in the encompassing medium. Bacteria transfer genetic material in a variety of ways, with the bacteria either transferring the gene from the donor to the receiver via adjacent cells, a plasmid, or uptaking a gene from the surrounding cells.

Transformation is the process of removing a gene from its environment. The genetic material may adhere open in the media because the surrounding bacteria may die. The bacteria acquire this genetic material during transformation, resulting in gene transfer.

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(complete question)

a process in which recipient cells acquire genes from free dna molecules in the surrounding medium is called group of answer choices

Conjugation

Transformation

Transduction

The Response area energy increases and is highest as the bicycle approaches the Response area of the hill due to kinetic energy.

Kinetic energy has been defined as the energy of the object that must occurs due to the motion of the object. The total work which is required  by the body to starts accelerating it by the help of given mass which has been supplied to from the rest position and the mentioned velocity.

The energy of the body has gets due to the process of the acceleration by this the body will be able to maintain the kinetic energy of the body without changing the speed of the body. The energy which has been stored in the body or any object by the help of the particular position or the proper arrangement of the parts is known as potential energy.

Therefore, the Response area energy increases and is highest as the bicycle approaches the Response area of the hill due to kinetic energy.

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In CG Headaches the vertebral artery is not one of the triggers or causes of the development of a CGH. The statement is true.

Cervicogenic headache (CGH) is a type of headache that originates from the cervical spine or neck region.

The main mechanism that causes CGH is believed to be the convergence of sensory input from the upper cervical spine and the trigeminal nerve. This convergence leads to the referral of pain from the neck region to the head and face. The cervical spine contains various structures, including muscles, joints, and nerves, which can generate pain that is perceived in the head. Common triggers for CGH include neck trauma, poor posture, and degenerative changes in the cervical spine. Treatment for CGH typically involves physical therapy, medications, and lifestyle modifications.

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The name for the fluid-filled cavity between the inner and outer tubes in numerous bilaterians is called the coelom.

The coelom is a body cavity that is present in many bilaterally symmetric animals, known as bilaterians. It is a fluid-filled space that lies between the outer body wall and the inner digestive tract. The development of the coelom was a significant evolutionary innovation that allowed for greater mobility and complexity in the organization of internal organs.

The coelom serves several important functions. Firstly, it provides a protective cushioning for internal organs, allowing them to move and function independently of the outer body wall. This freedom of movement enables more efficient locomotion and enhances the organism's ability to respond to its environment.

Secondly, the coelom also serves as a space for the circulation of fluids, such as blood or hemolymph, facilitating the transport of nutrients, gases, and waste products throughout the body. The coelomic fluid helps to distribute these substances and maintain a stable internal environment.

The presence of a coelom is considered a defining characteristic of certain animal groups, including annelids, mollusks, and chordates. However, not all bilaterian animals possess a coelom. Some organisms have a modified version of the coelom or lack it altogether.

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Answer:

D.  The main product of cellular respiration is ATP waste products include carbon dioxide and water​

Explanation:

The main product of cellular respiration is ATP waste products include carbon dioxide and water​.

A glucose molecule gradually decomposes into carbon dioxide and water during cellular respiration. In the process of transforming glucose, some ATP is directly created.

But far more ATP is later created through a procedure known as oxidative phosphorylation. The electron transport chain, a collection of proteins enmeshed in the inner membrane of the mitochondrion, is what drives oxidative phosphorylation.

Glycolysis. In a new window, click here During glycolysis, the six-carbon sugar glucose goes through a number of chemical changes. It ultimately transforms into two molecules of pyruvate.

Therefore, The main product of cellular respiration is ATP waste products include carbon dioxide and water​.

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The de novo cholesterol synthesis begins with the production of acetyl CoA through the acetate or citrate.

Acetyl CoA is then transformed into the 3-hydroxy-3-methylglutaryl-CoA (HMG CoA), mevalonate, squalene, lanosterol, and cholesterol through cholesterol several enzymatic transformations.

What is Cholesterol is generated ?

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The given statement "If a mutation has no effect on fitness, it may stay in the gene pool indefinitely" is true because If a mutation has no effect on fitness, meaning it neither enhances nor reduces an organism's ability to survive and reproduce.

It is considered neutral in terms of natural selection. In this case, the mutation can persist in the gene pool indefinitely. Since natural selection acts on traits that affect an organism's fitness, mutations that have no impact on fitness are not subject to selective pressures. As a result, these neutral mutations can accumulate and persist in a population without being eliminated by natural selection.

Over time, the frequency of these neutral mutations may fluctuate due to genetic drift, migration, or other factors, but they can remain in the gene pool over generations. It's important to note that even though a neutral mutation may persist, it may still be lost or go to fixation in a population due to random chance or other evolutionary forces.

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Answer:

Non living things can be classified into

They exist in nature or are made by living things. There are three groups of nonliving things. They are solids, liquids, and gases.

Explanation:

Answer: B. Flammability i think

Explanation:

Answer:

Pathogen-derived plant hormones, such as auxins and CKs, participate in tumor induction in plants. Plant hormone compounds impact on the human cell cycle and cell viability [22,23], and thus when ingested through food or produced by microbes they could influence cancer development in animals [24].

Explanation:

The flowering, setting of winter buds, and vegetative growth of plant response are affected by photoperiod.

The timing and length of day and night trigger a biological reaction known as photoperiodism. It regulates the development of winter buds, vegetative growth, and flowering. Detection of seasonal variations is vital to plant life.

The majority of plants are sensitive to photoperiod in many different ways, including seed germination, leaf formation rate, leaf blade length and width expansion, dry matter generation, and partitioning, in addition to its effects on generative growth.

The reaction to variations in day length that enables plants to adjust to seasonal changes in their environment is called photoperiodism.

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The correct answer is a) sympathetic. The sympathetic nervous system is responsible for the "fight or flight" response in the body, which can lead to increases in blood pressure.

It triggers the release of adrenaline and norepinephrine, which can cause blood vessels to constrict and the heart to beat faster and stronger. The parasympathetic nervous system, on the other hand, is responsible for the "rest and digest" response, which can lead to decreases in blood pressure. It promotes relaxation and slows down heart rate and breathing. Therefore, option c) both a and b and d) none of the above are not correct as they do not accurately reflect the role of each nervous system in regulating blood pressure.

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Answer:

Sunscreen reduces the level of UV radiation, which causes damage to DNA, and slows the development of melanoma

Answer:

Shark eats a parrotfish. No but help to maintain the populations of the next-biggest predators in the food chain.

Explanation:

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Increased generation of stomach acid is not one of cholecystokinin's (CCK) functions.

This hormone's effects on hunger and digestion are the most well-known. It enhances digestion by delaying the stomach's emptying of meals and promoting both bile production in the liver and bile release from the gall bladder.

The digestive system's peptide hormone cholecystokinin is in charge of promoting the breakdown of fat and protein. It is produced by a cell in the small intestine's epithelium, and it is secreted in the duodenum. It triggers the gallbladder to release bile and digesting enzymes from the pancreas.

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Answer:

Explanation:

These sharks would thus be characterized as __ oviparous______.

Answer:

A.thymine

Explanation:

Thymine is found in DNA

Answer: Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands.

Explanation:

Answer:

It can replicate itself

Explanation:

A characteristic of DNA molecule that is not characteristic of a protein molecule is that the DNA molecule can replicate itself

Test specimens often require immediate cooling in ice and water slurry to d. slow down metabolic processes.

Cooling the specimen in an ice and water slurry helps preserve the integrity of the sample by reducing the rate of chemical reactions and preventing the breakdown of certain substances. This is crucial for accurate laboratory analysis, as it minimizes the chances of obtaining false results due to altered sample composition.

It is important to note that the other options mentioned may also apply in specific cases. For example, cooling a specimen may prevent activation of cold agglutinins (option a) in blood samples being tested for autoimmune conditions. Additionally, it can help in preventing the specimen from clotting (option b), especially when dealing with certain coagulation tests.

However, the primary purpose of cooling the specimen in an ice and water slurry is to slow down the metabolic processes, ensuring the sample's stability and providing more reliable results during laboratory analysis.

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The correct answer is b. Prevent the specimen from clotting. Cooling the test specimens in ice and water slurry can help prevent the activation of clotting factors and the formation of clots, which can interfere with accurate test results.

This is particularly important for tests that require whole blood specimens, such as coagulation tests and blood gas analysis. Cooling the specimens can also help slow down metabolic processes and preserve the integrity of certain analytes, but preventing clotting is the primary reason for immediate cooling. Cold agglutinins, which are antibodies that can cause clumping of red blood cells at low temperatures, are typically not a concern in most laboratory tests. Separating serum more completely is usually accomplished by centrifugation rather than cooling.

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Answer:

Please read below:

Explanation:

In general, it is not possible to determine the type of cell division that has just taken place based solely on the chromosome number (2n or n) of the resulting cells. This is because both mitosis and meiosis can result in cells with a 2n or n chromosome number, depending on the specific stage of the process that is being observed.

During mitosis, a cell undergoes a single round of DNA replication followed by one division, resulting in two identical daughter cells, each with the same chromosome number as the original parent cell. In most cases, this means that the daughter cells will have a 2n chromosome number, since they contain the same amount of genetic material as the parent cell.

During meiosis, however, a cell undergoes two rounds of division, resulting in the production of four genetically diverse daughter cells, each with half the chromosome number of the original parent cell. This means that the resulting cells will have an n chromosome number, which is half of the 2n chromosome number of the parent cell. However, it is important to note that in some cases, cells may undergo meiotic divisions but still retain a 2n chromosome number (as is the case with certain plant cells).

Thus, while the chromosome number of a cell can provide some information about the type of cell division that has taken place, it is not a definitive indicator and must be considered in the context of other factors, such as the specific stage of the cell cycle, the type of cell undergoing division, and the presence or absence of homologous chromosomes.

The type of aquatic organisms the given organisms in 11- 20 belong to is Benthos. The correct option is A.

Benthos organisms are organisms that inhabit the bottom or substrate of a body of water, such as oceans, seas, lakes, rivers, or streams.

They are commonly found in close proximity to the seabed or the floor of freshwater systems. Benthos organisms can include a wide range of organisms, including plants, animals, and microorganisms.

These organisms are specially adapted to live in the benthic zone, which is the ecological region that encompasses the sediment or substrate and the water immediately above it.

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Complete question:

For numbers 11-20, identify on what type of aquatic organisms they belong. Choices are:

Benthos b. nektons c. neustons d. periphytons e. planktons

_____ 11. starfish

_____ 12. Water snake

_____ 13. sponges

_____ 14. octopus

_____ 15. jellyfish

_____ 16. lobsters

_____ 17. Whirligig beetles

_____ 18. hydra

_____ 19. whales

_____ 20. Diatoms

The biological referred to as Adaptation makes living beings to adjust in exhausting atmosphere.

Adaptation, in biology, is that the method by that species measure suitable their several atmosphere, thanks to Natural Selection’s method ensuing into patrimonial variation over many generations.

According to Evolution, Adaptation method is that the process underneath that organisms suits the present atmosphere in conjunction with the modifications thanks to change in atmosphere.

Adaptation is connected with the idea of evolution that was propounded by Darwin and Wallace.

According to Wallace, the evolution of organisms was supported 2 factors: Adaptation and dynamic atmosphere.

To develop the idea of evolution by survival, Wallace and Darwin targeted not solely on straightforward adaptation however additionally proceeded more to clarify however organisms adapt and evolve.

Biologically Adaptation will be in 3 forms:

- Psychological kind

- generative kind

- sequence Frequency

Psychological form- associate degree animal or plant adapt by adjusting consistent with its immediate atmosphere.

Example- modification in temperature or metabolism with a rise in altitude

Reproductive form- method of adaptation thanks to genetic variations among people that is customized i.e. having larger success in—a specific environmental context.

Gene frequency- the method of adaptation happens through associate degree ultimate modification within the sequence frequency relative to blessings bestowed by a selected characteristic, like the coloration of wings within the moths.

Organisms will adapt to associate degree atmosphere in several ways in which. they will adapt biologically, which means they alter body functions

Example- individuals living at high altitudes have evolved changes in their body chemistry and may survive at high altitudes for a brief time as a result of their bodies raise their levels of hemoprotein.

They can additionally exhibit activity adaptation.

Example of activity adaptation is however emperor penguins in Antarctica foregather to share their heat within the middle of winter.

The theory of survival was given by Darwin in 1859.

Natural selection is that the method through that populations of living organisms adapt and alter.

Individuals in an exceedingly population square measure naturally variable, which means that they're all completely different in some ways in which.

This variation means some people have traits higher suited to the atmosphere than others. people with adaptive traits—traits that provide them some advantage—are a lot of seemingly to survive and reproduce.

These people then pass the adaptive traits on to their offspring. Over time, these advantageous traits become a lot of common within the population.

Through this method of survival, favorable traits square measure transmitted through generations.

Natural selection will cause phylogeny, wherever one species offers rise to a replacement and clearly completely different species. it's one among the processes that drives evolution and helps to clarify the range of life on Earth.

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Answer:

7 is A

8 is A

9 is also a