Yes all of them are primary consumers
Answer is A. This is because it takes no energy and is natural for particles to go from high to low concentration. Think of a packed room. If the door opened it would take no energy for people to flow out. It would take a lot of energy for more people to get crammed in the room the room though (going from low to high concentration)
Answer:
Mitosis is a way of making more cells that are genetically the same as the parent cell. It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged.
Explanation:
Energy produced by the various process of respiration stored in the form of ATP within the tissues
The arteries take deoxygenated blood back to the heart.