Natural selection act directly upon <u>Alleles</u>
Explanation:
Genes, such as that of fur color, have many variants called alleles. Natural selection act on the alleles and chooses the best fit for an environment and eliminates the disadvantageous ones from the population over generations. Mutations are a rare occurrence that increases the number of allelic variants of a genes on which natural selection can act upon.
The answer is 5 hope this helps you have a great day
There are a few different names for Mitosis: Cell division and cellular division (these are the words that I can think of) I hope this helps.
The S Phase is when the chromosomes duplicate
