Are black bear omnivore or carnivore?

What evidence is there that convection occurs in earth’s troposphere?

Which of the following is not a way in which a vascular plant's xylem and phloem are similar?

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.