C. The sun because the sun is what gives energy to the plants and so on. Hope its not to late :)
<em>Answer:</em>
<em>Rain forests recycle nutrients. (Apex)</em>
<em>Explanation:</em>
<em>Plants can convert atmospheric carbon dioxide to other carbon based compounds through photosynthesis. Rain forests are the largest carbon revisers and are responsible for most of the oxygen in the atmosphere </em>
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<em>Basically they take in carbon dioxide,convert it to oxygen and then release the oxygen back into the environment. Thus helping to prevent the plant from heating up.</em>
Answer:
A. Nature selects against only harmful traits.
Explanation:
Vestigial structures don't harm the organism.
Im pretty sure d is the correct answer i remember this in science