What are the similarities between thick and thin skin? I can't find the answer anywhere, they are only highlighting the differences.

Mutations associated with albinism affect proteins involved in synthesis

What materials must dams have to produce electricity, and what must occur?

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.