Explain what occurred in the years after 1956 and how the frequency of the phenotypes changed as a result.

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

An organism's reproductive strategy includes all of the following except a. the number of offspring produced. b. the amount of energy expended in producing offspring. c. the length of time parental care is given d. the number of alleles an organism passes on.

Do fish feel pain? and if they do what pain