Answer:
Because photosynthesis is a source of oxygen, it seems intuitive that photosynthesis evolved first: once enough O2 was in the air, then respiration would be able to arise in the newly oxygen-enriched atmosphere. However, some biologists have argued since the 1970's that respiration in fact evolved first.
C<span>hloroplasts, which are only found in plants, give plants the green color because chlorophyll, a green pigment that helps in photosynthesis, is located inside of them</span>
Answer:
A .They result in sudden gene frequency changes.
Explanation:
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