Help me please this is a graded quiz! ​

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.

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

What are genotypes? what are phenotypes?