Which of the following can cause variety in a species? You can pick one then one choice on this question

A. Variety of food sources
B. Asexual Reproduction
C. Sexual Reproduction
D. Mutations
E. Different colored environments

The influenza virus cause the flu, but not other diseases. why?

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?