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I believe the answer is:
A. Supply exceeds demand. When supply exceeds what is being asked of, the forest will always be sustainable.
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Answer: Depending on the nature of the signaling molecule, it may either bind to and activate a receptor protein embedded in the plasma membrane, or it may move across the plasma membrane and bind to a receptor protein in the cytoplasm.
Explanation: I found this answer on quizlet
Answer:
A
Explanation:
A(adenine) form 2 hydrogen bond with T(thymine)
G(guanine) form 3 hydrogen bond with C(cytosine)