Answer: One way of creating a variation in a population is through genetic replication errors. This will make a new type of alleles. Environmental factors cause variation such as affecting enzyme activity and function. The changes would show in the phenotype of an organism.
Explanation: thus is one way ik for sure another way idk srry
Hi these proteins are called *Cyclins *
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As the plate gets pushed down it gets closer to the center of the earth so it melts. It is less dense so it rises to the surface, tension builds up, and forms a volcano - I am almost positive this is accurate
