Answer:
Using the real system might mess up and using a computer model is clearer and gives a more advanced view
Answer:
Mutations and sexual reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring. ... Individuals may mutate, but natural selection acts by shifting the characteristics of the population as a whole.
Explanation:
I'm pretty sure it's high density as a solid.
These would be any cells that reproduce asexually, like bacteria