A function of white blood cells is to
A. carry carbon dioxide
B. fight disease
C. form blood clots
D. carry oxygen

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.