1. what three important things does the blood do as it is circulating through the body? a. supplies the body with oxygen and nutrients, and picks up carbon dioxide wastes b. supplies the body with carbon dioxide and oxygen c. supplies the body with nitrogen, oxygen, and sugar d. it does nothing at all

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >