Why is it a good thing to have a lot of genetic variation within a population or species? Group of answer choices

A. If conditions change, you have a greater chance of someone having adapatations that allow them to survive and reproduce.

B. You will produce the most attractive offspring.

C. You will produce the most offspring.

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because