A dog is part of which sphere of earth

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 conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

What field of science did harry hess study?