Key is to lock as D. Substrate is to active site.
Answer:
Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. That causes their genes to become more common in the population over time, and it's the way species evolve to adapt to changes in their environment.
Explanation:
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by WASHING THEIR HANDS EVERY TIME THEY HANDLE FOOD OR USE THE LOUI!!!!!
Batteries, biomass, petroleum, natural gas, and coal are examples of stored chemical energy
A vertebrate is an animal with a backbone.
