Agraphic that shows the number of organisms in each trophic level of the ecosystem is called a(n)

a.) population pyramid
b.) population graph
c.) number pyramid
d.) number graph

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?

What was the impact of the concordat of worms?

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?