Valves ensure blood flows toward your heart. Vein valves work to bring the blood that flowed down via arteries back up to your heart.
More negatively charge than the outside.
Answer: Growing is capable to a certain living organism. Growth means getting larger in size, and for multi-cellular organisms this is done by making more cells. Plants have special tissues called meristems where growth occurs. Single celled organisms increase their numbers by dividing and making more cells like themselves.
Explanation:
Answer:
Nitrogen-Oxide, and Nitric-Oxide
Explanation:
Google said so.
Its true.......................................................
