Answer: Membrane transport proteins are specific and selective for the molecules they move, and they often use energy to catalyze passage. Also, these proteins transport some nutrients against the concentration gradient, which requires additional energy.
Explanation:
It was the type of diversity that had to do with the niche depending on which niche you are is the amount of varaiaton in your gene pool
Adenine pairs with thymine (or uracil), and guanine pairs with cytosine.
Answer:
Thymine
Explanation:
Nitrogen base found in DNA not RNA
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