Animals have nervous systems a. collect metabolic wastes. b. gather information. c. produce offspring. d. acquire oxygen and nutrients..

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48

What goes in and out of a cell respiration?

Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans