What is a primary species?

The primary species something regenerates off of.

For example: Let's say there was an animal called a goblegg.

If the animal who gives it the main components is an chicken, the primary species is a chicken.

Hope this helps!

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

the correct answer is:

a population changes in response to a change in the environment.