Answer:
B is oldest because it is at the bottom which entails that it is the oldest.
Explanation:
Answer:
Energy produced by respiration is stored in Adenosine triphosphate, also known as ATP.
Explanation:
Cellular respiration uses glucose and turns it into ATP. Using NADH and FADH₂ (Created in the Krebs Cycle) in the Electron Transport Chain, we can produce 32-38 molecules of ATP. ATP carries a lot of energy, and your cells and body uses ATP (ATP is basically like a large battery).
A concentration gradient and membrane that allows water to pass, but not the solute, must be present
Unicellular organisms are living things made up of only one cell. For example, bacteria and yeast are unicellular. Multicellular organism are made up of more than one cell. Some examples of a multicellular organisms are humans and animals.