Answer:
A. The complementary shapes of an enzyme and a substrate
Explanation:
The Lock-and-Key model was made to show how an enzyme's active zone fits a substrate and how they bond together. It correlates just like a lock and a key; you have to have the correct-shaped key in order to open a lock. Same process of thought with the enzymes; you must have the same shape for both in order to bind together,
C. Since they have to gain that skill.
When it gets cold, the accumulated water inside the pipes freezes, expands and creates extreme pressure.
Question like "simply 10*1000000" that would be 10^6
The answer to your question is <span>B. Natural selection acted on the variation that was present in the population.
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