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gladu [14]
3 years ago
15

How does natural selection contribute to the amount of biodiversity on our planet?

Biology
1 answer:
s2008m [1.1K]3 years ago
6 0

Answer:

Explanation:3Natural selection is dependent upon the environment; different environments produce different adaptations in species

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"Down- regulation results in an increase in the number of target-cell receptors" statements is incorrect.

<u>Option:</u> B

<u>Explanation:</u>

The generation of gene products with the biological context of organisms: down-regulation is a mechanism by which a cell reduces the amount of a cellular product, such as RNA or protein, in accordance to an external stimulus, for instance, on type 2 diabetes, insulin receptors may be downregulated.

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3 years ago
What is the function of the heart
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<h2>to beat blood thru the body </h2><h2><u><em>and can i have brainlist plz thx</em></u></h2>

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Which of these is a pure substance that cannot be broken down by a chemical reaction?
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Plz mark brainliest:)

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