Answer:
e. secretion, absorption and chemical protection
Explanation:
Epithelial tissues is responsible for the protection of the skin, absorption of nutrients during digestion and secretion of waste materials. These tissues form covering to all body surfaces. They also perform a variety of other functions such as excretion of waste substances, filtration of air from dirt and particles and clean the air that is inhaled, diffusion, and sensory reception.
The outer layer of a cell that acts as a gatekeeper to a cell is the plasma membrane.
The plasma membrane's job is to selectively permit or restrict substances from entering or leaving the cell.
B: Use oxygen to make ATP
It's a process in the mitochondria known as "oxidative phosphorylation" or "aerobic respiration."
**Note: "aerobic" and "oxidative" mean "uses oxygen."
Photosynthesis helps plants grow and become stronger as the more sunlight hits them. It’s where plants get all there nutrients aka food from to keep living.
