how does polyploidy lead to sympatric speciation

Answer:

D

Explanation:

Diffusion and osmosis are both passive forms of transport because there is no energy need to transport something such as water from an area of high pressure, to an area of low pressure.

An individual with sedentary lifestyle might be at risk for hypokinetic diseases such as high blood pressure. Moderate physical activity such as walking and biking gives a great benefit to avoid such risk. Moderate physical activity can reduce major medical conditions that might lead to early death. Too little movement or activity might lead to hypokinetic diseases. Regardless of the intensity of the physical activity, it will lower the risk of an early death due to hypokinetic diseases.

The genioglossus, hyoglossus, and styloglossus muscles are all muscles of the tongue. They originate from different parts of the skull and attach to different parts of the tongue, but they work together to move the tongue during speech, swallowing, and other oral functions.

The muscles of the tongue are a group of small, specialized muscles that are located entirely within the tongue itself. They are responsible for controlling the precise movements and shape of the tongue during various oral functions, such as speech, swallowing, and chewing. Additionally, these muscles work together to help move the tongue in various directions, such as protrusion, retraction, and elevation. They are also innervated by branches of the hypoglossal nerve.

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Answer:

Stomata are pores in the leaf that allow gas exchange where water vapor leaves the plant and carbon dioxide enters. Special cells called guard cells control each pore's opening or closing. When stomata are open, transpiration rates increase; when they are closed, transpiration rates decrease.

Explanation:

A bile-tolerant, gram-negative anaerobic bacillus indicates that the isolate is likely a member of the Enterobacteriaceae group.

Enterobacteriaceae is a family of gram-negative bacteria that includes many common pathogens such as Escherichia coli, Salmonella, and Klebsiella. These bacteria are characterized by their ability to ferment glucose, oxidase-negative, and most are motile with peritrichous flagella.

Bile-tolerant bacteria, on the other hand, are those that are capable of growing in the presence of bile, a substance that is produced by the liver and stored in the gallbladder, which is commonly used as a selective agent in bacterial culture media.

When a bacteria is identified as being both bile-tolerant and gram-negative anaerobic bacillus, it is highly suggestive of a member of the Enterobacteriaceae group. Further laboratory tests, such as biochemical testing or DNA sequencing, may be necessary to confirm the identity of the organism.

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Answer:sperm

menstrual

fraternal

steroidal

semen

prostate

fallopian tube

ectoderm

placenta

After fertilization of an egg by sperm in the fallopian tubes, a blastocyst forms and implants on the uterus wall. These cells then begin to differentiate. During gastrulation, the three main germ layers form (endo, meso, and ectoderms). During neurulation, the notochord and neural tube form. The neural tube must close to avoid birth defects or conditions. The amniotic sac forms, and the placenta forms to provide a link from the mother to the fetus through the umbilical cord. During months 4-6, bones replace cartilage and organs develop. In months 7-9 the fetus matures its lungs and central nervous system. Finally, oxytocin triggers childbirth, when uterine contractions push the baby from the vagina.

Explanation:

Answer:

sperm

menstrual

fraternal

steroidal

semen

prostate

fallopian tube

ectoderm

placenta

After fertilization of an egg by sperm in the fallopian tubes, a blastocyst forms and implants on the uterus wall. These cells then begin to differentiate. During gastrulation, the three main germ layers form (endo, meso, and ectoderms). During neurulation, the notochord and neural tube form. The neural tube must close to avoid birth defects or conditions. The amniotic sac forms, and the placenta forms to provide a link from the mother to the fetus through the umbilical cord. During months 4-6, bones replace cartilage and organs develop. In months 7-9 the fetus matures its lungs and central nervous system. Finally, oxytocin triggers childbirth, when uterine contractions push the baby from the vagina.

Explanation:

Answer:

At least some of the proteins that function int he nuclear envelope are made by the ribosomes on the nuclear envelope.

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The endocrine glands in Figure 2 and their corresponding hormones are:

Endocrine glands are a type of gland that secretes hormones directly into the bloodstream to regulate various bodily functions. These glands are responsible for producing and releasing hormones that regulate growth and development, metabolism, sexual function, and other important physiological processes.

The endocrine system is made up of several glands, including the pituitary gland, thyroid gland, adrenal glands, pancreas, and gonads (ovaries or testes), among others. Each gland produces a specific set of hormones that are transported by the bloodstream to target organs and tissues throughout the body.

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Answer:

its a chemical link between two atoms or ions in where the electron pairs are shared between them :)

Explanation:

It is important for Mendel's subject to reproduce quickly so that he could complete many experiments in a short period of time. Many offspring are needed so as to study the phenotypes and genotypes in detail.

Mendel carried out several breeding experiments using the pea plant. Through his series of experiments, Mendel was able to formulate the laws of genetics, otherwise known as the law of segregation and the law of independent assortment respectively.

Mendel made use of the pea plant for his breeding experiments for a couple of reasons:

Thus, it is quite important that the subject used by Mendel reproduced quickly and produced many offspring so as to be able to conduct several breeding experiments within a short period as well as study the traits in detail.

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The process by which a single species gives rise to a variety of descendant species over time is called "adaptive radiation."

In adaptive radiation, a single ancestral species diversifies into multiple distinct species, each adapting to different environments or exploiting different resources. This often occurs when a species encounters new, unoccupied habitats or ecological niches.

The process typically involves the following steps:

1. An ancestral species enters a new environment with a variety of available niches.
2. Individuals within the ancestral species possess genetic variations, which may provide advantages in certain niches.
3. Those individuals with advantageous traits are more likely to survive and reproduce, passing their traits to their offspring.
4. Over time, populations with different advantageous traits become reproductively isolated, leading to the formation of distinct species.
5. These new species continue to adapt and evolve, further specializing in their respective niches.

Adaptive radiation can result in the rapid diversification of species and is an essential process in shaping the diversity of life on Earth.

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The data that best support the agreement is as follows: an increase in the amount of DNA and RNA produced by the cell after it has taken in nucleotides broken down from raw fruits and vegetables (option B).

Nucleic acids are chain-like biological macromolecules consisting of multiple repeat units of phosphate, sugar and purine and pyrimidine bases (nitrogenous bases).

Nucleic acids are the DNA and RNA found in the nucleus of living cells.

According to this question, cells first digest nucleic acids into nucleotides, then use those nucleotides to produce DNA and RNA inside the cell.

This suggests that the data that best supports the aforementioned argument is that an increase in the amount of DNA and RNA produced by the cell after it has taken in nucleotides broken down from raw fruits and vegetables.

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According to the research, Earth's mantle is hotter than the crust.

It is the solid layer that lies between the central core of planet Earth and the earth's crust.

Advancing towards the core of the planet, the Earth's mantle is hotter than the crust and is subject to greater pressures, so its physical properties and chemical composition will also vary.

Therefore, we can conclude that according to the research, Earth's mantle is hotter than the crust.

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Answer:

answer in the link.

Explanation:

Answer: Photosynthesis

Explanation:

It is implied that there is a hierarchy responsibility for maintaining the facilities and equipment by having maintenance tasks completed at every level of the organisational structure as opposed to depending solely on a dedicated maintenance staff.

Maintenance is an essential part of quality control and, in some cases, has an impact on a business's long-term success. Unstable resources can stop production if they have not been maintained appropriately.

due to the fact that it not only improves asset performance but also prevents asset failure. Maintenance costs rise when an asset receives maintenance after it fails.

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Question:

What is the implication of having maintenance functions performed at every level in the organization's hierarchy, as opposed to having a dedicated maintenance personnel?

Answer:

Explanation: this is complicated

Answer:

Scientists have long known that the body adjusts to the oxygen-deprived conditions of high altitudes. ... The traditional explanation has been that low-oxygen conditions cause the body to build new red blood cells, making it easier to supply oxygen to muscles and vital organs.

Answer:

The answer is option D

Hope this helps.

The answer is D.Introducing traits into organisms

I did the test and I got it correct :)

Answer:

B: the lighter part of a shadow

Explanation:

The penumbra is a lighter type of shadow. Like any other opaque objects illuminated by a light source, the Moon and the Earth cast shadows into space as they block the sunlight that hits them. Each shadow has 3 different areas: the umbra, the penumbra, and the antumbra.

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Answer:

B: visible light

Explanation:

Answer:

B

Explanation:

At first exposure,

If HIV's effect on helper T-cells is not treated, it can lead to acquired immunodeficiency syndrome (AIDS), a condition in which the immune system is severely weakened and the person becomes susceptible to infections and diseases that would not normally cause illness in someone with a healthy immune system.

If HIV is not treated for 120 months (or ten years), the body's antibody production will start deteriorating. This happens because of the virus's long-term influence on the immune system, resulting in decrease in the number of helper T-cells. The body's capacity to make antibodies will be decreased if there aren't enough helper T-cells to signal their synthesis.

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Like all carbohydrates, a monosaccharide consists of three chemical elements: carbon, hydrogen, and oxygen. It is the simplest type of carbohydrate molecule and often serves as the basis for forming more complex molecules. Monosaccharides include aldoses, ketoses, and their derivatives.

Answer:

it needs a host to steal its nutrions to survive kind of like a leach

Explanation:

Answer:

Krebs cycle involves a series of reactions which oxidize the pyruvic acid molecules formed from glycolysis to produce carbon dioxide, energy(atp) as well as water

Energy is transferred from pigment to pigment inside of photosystem II when light is absorbed by one of the numerous pigments inside.

This process continues until the reaction center is reached. An electron's energy is raised there, where it is transmitted to P680. An acceptor molecule receives the high-energy electron, which is then exchanged for an electron from water.

We breathe in by saying O 2 start text, O, stop text, start subscript, 2, and end subscript synthesis of ATP. As it moves through an electron transport chain, the high-energy electron expends energy.

H, end text, start superscript, plus, end superscript ions are pumped into the nucleus from the stroma by some of the energy generated.

Therefore, Energy is transferred from pigment to pigment inside of photosystem II when light is absorbed by one of the numerous pigments inside.

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Answer:

Explanation:

"All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, adaptation, growth and development, homeostasis, energy processing, and evolution. When viewed together, these characteristics serve to define life."