Why do some birds have bright colors while others look more camouflaged

How is the carbon cycle related to global warming ?

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity

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.