Which factor is most likely to contribute to the evolution of a species

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not

Can a trait be both polygenic and have multiple alleles? explain why or why not.