Carbohydrates are important in the body because they contribute to the body‘s ability to
a regulate temperature
b produce atp
c absorb water
produce amino acids

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.

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?