<span>D. plants take in carbon dioxide and produce glucose animals consume plants animals break down glucose and release carbon dioxide. this is the correct option.</span>
Answer:
Negative regulation
Explanation:
In the trp operon, tryptophan binds to the repressor protein, then this complex binds to operator effectively blocking gene transcription preventing the production of enzymes that aids in the synthesis of tryptophan. This happens when high levels of tryptophan is detected. This, it is a repressible/negative type of regulation.
Answer: the answer is A
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Not photosynthetic organism must do to obtain glucose