Which of the following factors does not favor a change in gene frequency and, therefore, evolution?
(a) large populations
(b) mutations
(c) emigration
(d) genetic drift
(e) all of the above
can anyone explain this one?

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.