What is the basic difference between asexual and sexual reproduction?

Answer:

Nucleus, mitochondrion, and chloroplast

Explanation:

If I were to be a prokaryotic cell that suddenly develops the ability to take on 3 organelles that I do not already have, I would pick a nucleus, a mitochondrion, and a chloroplast.

The presence of the nucleus would enable the freely lying genetic materials in the cytoplasm to become organized and packaged within the nucleus, thereby enabling more controls over transcription and translation processes.

Also, the presence of mitochondrion would increase the efficiency of energy generation through oxidative phosphorylation and the chloroplast will enable the cell to be able to manufacture its own food through photosynthesis rather than depending on external sources for foods.

Answer:

the dominant alleles of white-tailed deer in this population only!

Explanation:A group of individuals of the same species that interbreed with each other is known as a population. The study of change in genetics is called population genetics which includes genes and alleles.  

Complete set of genes and their alleles that are present in a population is called gene pool. Gene pool includes both dominant and recessive alleles of every gene present in a population that can be transmitted in the next generation.

Population with high genetic pool has high diversity which increases the fitness of a population. As gene pool include all the genes and its allele in a population, therefore, the correct answer is all alleles of the white-tailed deer in this population only.  

Answer:

b

Explanation:

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d. of less density

I'm quite sure it correct...

Neurotransmitters find their way to the synaptic cleft and subsequently affect the next neuron.

During the synaptic transmission process (also known as neurotransmission), the neurons connect with each other and their target tissues through neurotransmitters. Neurotransmitters are produced by nerve endings and subsequently released into the synaptic cleft. Neurotransmitters then bind to receptor proteins in the target tissue's cellular membrane. The target tissue is subsequently stimulated, inhibited, or functionally transformed in some other way.

The human nervous system contains more than 40 neurotransmitters, but some of the most important ones are acetylcholine, norepinephrine, dopamine, gamma-aminobutyric acid (GABA), glutamate, serotonin, and histamine.

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It takes 15 monomers to create 5 water molecules. Two hydrogen atoms and one oxygen atom make up water, a covalent molecule. There are three monomers in each water molecule as a result. With 5 oxygen monomers and 10 hydrogen monomers, a total of 15 monomers are required to create 5 water molecules.

Introduction: Polysaccharides are carbohydrate molecules composed of three or more bound monosaccharides. Your body converts polysaccharides into monosaccharides, which are then used as fuel by your cells in a process called as hydrolysis.

Each bond between two neighboring monomers in a polymer needs one water molecule to be broken during hydrolysis.

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Answer:

The map uses color to indicate where a country falls compared to the world average. Green shows that a country is below the average ecological footprint size, whilst red shows countries that are above it.

The phylum that is most closely related to arthropods is the phylum Annelida, option d).

Arthropods and annelids share several similarities, such as having segmented bodies and a similar type of nervous system. This suggests a close evolutionary relationship between the two phyla.

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Answer: The answer to replace nitrogen with is oxygen. Therefore, if this was a true or false question, which it may be, the answer would be false.

Boii do i sure wish i knew T^T

Answer:

protein biosynthesis

Explanation:

prove me wrong

Answer:

any of a class of nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms, especially as structural components of body tissues such as muscle, hair, collagen, etc.

Explanation:

Answer:

I shouldn''t put your full name on there

Explanation:

you should have cropped your image we can see your full screen

To find out whether the volume of water a plant receives affects its growth, Raman should change the independent variable, which is the factor that he thinks may cause changes in the plant's growth. In this case, the independent variable would be the volume of water the plant receives.

To measure the effect of changing the volume of water on the plant's growth, Raman could measure the dependent variable, which is the factor that is affected by changes in the independent variable. In this case, the dependent variable could be the height of the plant or the number of leaves it has.

To ensure that the results of his experiment are valid, Raman should keep two variables constant, or control them. These are known as controlled variables. Two variables he should keep the same are the type of plant he is using and the amount of sunlight the plants receive.

Conclusively, if these variables were not controlled, the results of the experiment would not accurately reflect the effect of changing the volume of water on the plant's growth.

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Meiosis and mitosis are similar because they both have prophase and an anaphase. Thus, option A is correct.

Meiosis is a reductional type of cell division in which half amount of genetic material is received by each daughter cells as parent cell. It is special type of cell division in which sexually reproducing organisms in which germ cells that are sperm or egg cells are produced.

Mitosis in contrast is somatic cell division in which each daughter cell receive the same number of chromosomes and which are similar to parent.

But, both the meiosis and mitosis processes occur during M phase of cell cycle. In prophase of both, condensing of chromosomes and separation of centrioles occur. So, in both the processes have similar steps called prophase and anaphase. Therefore, option A is correct.  

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The study found no statistically significant difference in methylation levels between smokers, former smokers, and never smokers.

The study aimed to investigate the effects of tobacco smoking on global methylation and hydroxymethylation in oral epithelial cells. Buccal cells were collected from 47 individuals, including smokers, former smokers, and never smokers. The DNA from these cells was extracted, and the levels of methylation and hydroxymethylation were measured using assays similar to enzyme-linked immunosorbent assays.

The results showed that there was no statistically significant difference in the average number of cigarettes between the smoker and former smoker groups. Although methylation levels were lower in smokers (3.1%) and former smokers (2.16%) compared to never smokers (4.16%), these differences were not statistically significant. This implies that tobacco smoking did not have a significant impact on global methylation levels in the oral epithelial cells of the study participants.

However, there was a notable finding regarding hydroxymethylation levels. The study revealed a two-fold increase in hydroxymethylation levels in never smokers compared to smokers. This suggests that the absence of smoking was associated with higher levels of hydroxymethylation in oral epithelial cells.

Overall, while the study did not find statistically significant differences in methylation levels between the smoking groups, it indicated a potential association between smoking status and hydroxymethylation levels in oral epithelial cells.

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Answer:

clean

Explanation:

privacy comfortable easy to use

Answer:

Two conditions essential for good health are: mental and social well-being. Better surroundings or -environment.

Explanation:

Answer:its the fruit :D

Explanation:

Answer:

Fruit

Explanation:

It looks to be some sort of fruit, but not knowing what it could be, you could use deduction. We know it isn't the stem because the stem is the green parts connecting the roots to the leaves. We know it isn't a lead because, well, we all know what a leaf is. And it isn't a root because roots are the lines underground that collect water for the plant.

The question is not clear, so the clear question is as follows:

A cell has a 5 percent salt concentration. It is placed into a solution with a 0.5 percent salt concentration. What will happen to the cell?

Answer:

Cell will get swelled and burst

Explanation:

When a cell is placed in a solution with less concentration, then the solvent particles move from lower concentration to higher concentration through a semipermeable membrane and the process s called osmosis.

In this case also, the cell has higher concentration and the solution has less, so water will move into the animal cell, causing it to swell and burst after some time.

Hence, the correct asnwer is "Cell will get swelled and burst".

Answer:

Water will move into the cell, causing it to swell.

Explanation:

The cell has higher concentration of solute and a lower concentration of water than the solution it is placed in. This means that water will move into the cell, causing it to swell and ultimately burst.

Right from khan :))

Answer:

Carries

Explanation:

The blood is a tissue composed of plasma (liquid) and various cells. It is a major component of the circulatory system. The blood serves majorly as a "CARRIER" helping to transport different substances throughout the body.

The blood CARRIES oxygen, nutrients, hormones and other important materials throughout the body as it circulates.

Answer:

just go with b i had this it was b

Explanation:

The antigen-presenting cell will consume bacteria before displaying an antigen fragment on its surface. The helper t cell possesses receptors that attach to the antigen, which causes that helper t cell to become activated.

Immune cells include helper T-cells. They alert other immune cells to an infection so they can combat it. They may trigger the production of antibodies by B-cells or cytotoxic T-cells. One of the most significant cell types in your adaptive immune response are your helper T-cells.

Since they are necessary for practically all adaptive immune responses, helper T cells are arguably the most significant cells in adaptive immunity. They aid in the activation of cytotoxic T cells, which kill infected target cells, as well as B cells that generate antibodies and macrophages that kill ingested microorganisms.

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eastern and western meadowlarks look almost identical and sometimes inhabit the same areas of prairies. they recognize members of their own species by distinctive songs and thus do not breed with each other. this is an example of Behavioral isolation.

Behavioral isolation happens whenever one species is chromosomally isolated from another due to psychological distinctions. Behavioral isolation is a method used by nature to avoid species crossbreeding through behavioural differences. When the existence or absence of a particular behaviour prevents reproduction, this is referred to as behavioural solitude. Male fireflies, for example, use light source patterns to attract females. Unique mating signifies or courtship rituals; behavioural isolation Space - time isolation is a time detachment in which procreation occurs at various times of the day, the season, or even the year.

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(A) Protozoa and some low-level multicellular animals There are no organs responsible for excreting liquid waste. Such waste can penetrate the cell surface directly into the water outside of it. If paramecium does not contain vacuoles will cause it to lose the balance of body fluids The contractile vacuole compression rate depends on the osmotic pressure of the water in which the animal lives, i.e. the compression rate decreases. if the osmotic pressure of the water in which it resides increases But it will speed up if the osmotic pressure of water decreases.

(B) The water mixed with salt has a higher concentration than fresh water. So the water diffuses into the paramecium. Therefore, the contractile vacuole is less compressed to remove water from the cell than when in fresh water.

Answer:

the process by which amino acids are linearly arranged into proteins through the involvement of ribosomal RNA, transfer RNA, messenger RNA, and various enzymes.

Explanation:

Answer: I think the correct answer from the choices listed above is option C. Over a period of years, most likely, individuals that are well suited to the environment reproduce, and those that have lesser adaptations die before they reproduce. Hope this answers the question.

Explanation:

The correct matchings are: Deforestation: Destroys natural carbon sinks, leading to more CO2 in the air. Burning fossil fuels: Primary cause of human-created carbon emissions. Waste disposal in landfills: Emits methane from decomposing matter

1. Deforestation intensifies the greenhouse effect by contributing to increased levels of carbon dioxide (CO2) in the atmosphere. Trees act as natural carbon sinks, absorbing CO2 through photosynthesis and storing it in their biomass.

2. Burning fossil fuels, such as coal, oil, and natural gas, is the primary cause of human-created carbon emissions. These fuels release carbon that has been stored underground for millions of years into the atmosphere as CO2.

3. Waste disposal in landfills intensifies the greenhouse effect through the production of methane (CH4). When organic waste decomposes in oxygen-deprived conditions, methane is released. Methane is a potent greenhouse gas, with a significantly higher warming potential than CO2.

These activities highlight the human-induced factors that contribute to the intensification of the greenhouse effect and the resulting impacts on the Earth's climate system.

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When a metabolically stressed epithelial cell expresses the protein MIC-A on its surface and interacts with a natural killer (NK) cell, the outcome of this interaction can be the killing of the stressed cell by the NK cell.

MIC-A is a protein that is normally only found on the surface of cells that have been infected with a virus or have undergone a transformation, but can also be expressed on cells that are metabolically stressed or damaged.

NK cells are a type of white blood cell that plays a critical role in the innate immune response.

They are able to recognize and kill cells that have become abnormal, such as cells infected with a virus or that have undergone malignant transformation.

When an NK cell encounters a cell that has expressed MIC-A, it recognizes this as a signal of cellular stress or damage and can trigger the release of cytotoxic granules that contain perforin and granzyme.

These granules enter the stressed cell and induce apoptosis, or programmed cell death, leading to the elimination of the damaged or infected cell.

Overall, the interaction between a metabolically stressed epithelial cell expressing MIC-A and an NK cell can result in the elimination of the stressed cell, helping to prevent the spread of infection or the development of cancer.

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Approximately 99% of the body's total calcium content is deposited in the skeleton. So, the correct option is B.

The human body contains a significant amount of calcium, which is essential for various physiological functions. Calcium is primarily found in bones and teeth, where it provides structural support and strength.

Based on current scientific understanding, approximately 99% of the body's total calcium content is deposited in the skeleton. This indicates that a vast majority of the calcium in the body is utilized for maintaining bone health and integrity.

The remaining 1% of calcium is present in the blood, where it plays a vital role in various physiological processes such as muscle function, nerve transmission, and blood clotting. The body maintains a delicate balance of calcium levels in the blood through the actions of hormones such as parathyroid hormone and calcitonin.

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The genetic information stored in DNA is a living archive of instructions that cells use to accomplish the functions of life.

Inside each cell, catalysts seek out the appropriate information from this archive and use it to build new proteins — proteins that make up the structures of the cell, run the biochemical reactions in the cell, and are sometimes manufactured for export.

Although all of the cells that make up a multicellular organism contain identical genetic information, functionally different cells within the organism use different sets of catalysts to express only specific portions of these instructions to accomplish the functions of life.

The accuracy of these copies determines the health and inherited features of the nascent cells, so it is essential that the process of DNA replication.

Therefore, The genetic information stored in DNA is a living archive of instructions that cells use to accomplish the functions of life.

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The term that describes a single female arctic fox is a vixen.

A vixen is a female fox, including the arctic fox, that is not pregnant or nursing young. It belongs to the Canidae family and is found in the tundra and other Arctic regions of the Northern Hemisphere.The Arctic fox is a small, compact, and sturdy mammal that can survive in some of the world's harshest environments.

The population of Arctic foxes that lives along the eastern coast of Russia is not referred to as a group of polar bears. It is known as a population, a community, or a family.A population is a group of animals of the same species that live in the same area and interact with one another.

A family of arctic foxes is made up of a male and female adult and their offspring. They live together in underground dens that are used for shelter and protection.Arctic foxes are considered a keystone species in the Arctic region because they play a crucial role in the ecosystem. They feed on small animals like lemmings and voles, which helps to regulate their populations. In addition, they are a food source for larger predators like wolves and polar bears, which helps to maintain balance in the food web.

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