Na mushroom, what is the visible umbrella-shaped portion known as?

Name the glands associated with human digestive system

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

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.