How does homeostasis relate to our body systems?

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

According to the cladogram, which organisms have roundworms as a common ancestor?

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes