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4 months ago

An integral membrane protein that functions in the plasma membrane traveled through which organelles to get there?.

1 answer:

3 0

An integral membrane protein that functions in the plasma membrane traveled through endoplasmic reticulum organelles to get there.

Between the interior organelles of the cell and the external environment, the plasma membrane serves as a physical barrier. The plasma membrane is a selectively permeable membrane, allowing only a limited number of molecules to enter and exit the cell. Protoplasm, often known as plasm or simply living stuff, is a semi-fluid substance found inside of cells. Similar to an organ in the body, an organelle is a subcellular structure that serves one or more particular functions within the cell. A biological membrane known as the plasma membrane houses this live material or plasm. Identification, communication, control of solute exchange across the membrane, and isolation of the cytoplasm from the outside world are the plasma membrane's four primary roles. Each type of cell, including prokaryotic and eukaryotic ones, has a plasma membrane, a double layer of lipids that divides the inside of the cell from the external environment. The nucleus, which house genetic material, the mitochondria, which generate chemical energy, and the ribosomes, which put together proteins, are some of the more crucial cell organelles.

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Why is genetic diversity so important to evolution?

blsea [12.9K]

Answer:

If there was no diversity we would all look the same and i mean that would creep me out big time.

Explanation:

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2 years ago

In a population, surrounded with dark gray rocks, there lived 2 types of beetles, a gray beetle and a white beetle. In the start

Svetlanka [38]

Directional selection favors one of the extreme phenotypes over the other one. <u>Option C is correct</u>. Natural selection is the evolutive force, and 0.40, 0.40, and 0.20 are the new genotypic frequencies.

<h3>What is directional selection?</h3>

Directional selection is one type of natural selection. Let us remember that natural selection is an evolutive force.

Directional selection increases the proportion of individuals with an extreme phenotypic trait.

There must be a selective pressure or environmental pressure acting on populations to lead the species to increase the number of individuals expressing that extreme phenotype.

This selection presents more frequently in those cases in which interactions between living organisms and the environment modify in the same direction.

In the exposed example,

two original phenotypes ⇒ gray and white
substrate color ⇒ dark gray rocks
environmental pressure ⇒ birds preying on beetles

- Grey beetles managed to camouflage with rocks since their gray color was similar.

- White beetles were exposed on the dark gray rocks, so they were easily seen by birds.

- Predation by birds was an environmental pressure that had a stronger influence on the white phenotype.

Natural selection favored gray-colored beetles, who could survive and reproduce.

Assuming a diallelic gene expressing complete dominance codes for beetles color, we can suggest that the frequency of one of the homozygous genotypes increased, while the other decreased to near cero. Heterozygous individuals kept the allele coding for the white phenotype.

Among the options, <u>C is the correct one</u>. Natural selection is the evolutive force, and 0.40, 0.40, and 0.20 are the new genotypic frequencies.

You can learn more about natural selection and directional selection at

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1 year ago

Name two evolutionarily significant benefits of meiosis that are not present in mitosis

dsp73

Meiosis allows more mutations and change than Mitosis. Meiosis can transfer if 1 person is immune to a very dangerous disease than they can provide more people with Immunity by providing offspring

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2 years ago

Which situation results from increased biodiversity in an ecosystem

Nastasia [14]

The correct answer is - increased competition.

If an ecosystem experiences an increase in its biodiversity, than the result of it would be increased competition. The increased competition will be for food sources, water sources, territory. The reason why increased competition will occur is that there are only limited mounts of food sources, water sources, and territory in the ecosystem. There's also certain amount of niches in the ecosystem, and once all of them are occupied by some species, any other that is specialized for that niche will be competitor plus. This increased competition will lead to high evolutionary pressure, which will result in relatively quick adaptations and specialization in order to survive.

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2 years ago

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Leakage of lpg can be deleted by a person from a distance . name the process and write two applications of this process in our d

Nuetrik [128]

Answer:

Explanation:

LPG gas is basically propane and butane, and it is odourless in its natural state. The smell that you notice when there is a leak is actually the stench of an entirely different agent, called Ethyl Mercaptan (C2H6S). This substance is added to the gas when it leaves the main storage terminals.

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11 months ago