Ryan realizes that his heart is beating faster than usual the moment jenna walks into the classroom. he wonders whether he has a crush on her. this reaction is best explained by the

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.

Which label correctly identifies what x represents in the concept map?

What is the correct order of cell division? include what happens in each phase