Which of the following statements is true?
a. gene flow and natural selection always result in evolution.
b. gene flow usually increases the genetic differences between two populations.
c. according to natural selection, organisms with poor adaptations will never reproduce.
d. since genetic drift is random, it does not always favor the "healthier" or "better" organisms.

Awire-hair terrier and a smooth-hair terrier are mated. the offspring produced are 6 wire-hair puppies and 2 smooth-hair puppies. a. what pattern of inheritance best describes this situation? b. what is the genotype(s) of the wire-haired puppies? of the smooth-haired puppies? c. what would be the expected genotype and phenotype ratios of a mating between 2 wire-haired terriers that are heterozygous?

2. which is the last step in the scientific method?

In what part of the body does the most muscle activity happen?