Mammals are adapted to live in D - all of the above. Mammals are, infact, very versatile groups of species which have evolved in a way that also itself enables their versatility. For this reason, mammals have been able to roam the different parts of Earth and thrive in that environment.
It would be an antioxidant, and the most commonly used antioxidant would be absorbic acid.<span />
It converts Energy to food!
Hope this helps
Think about skin cells. Skin cells shed every day, if cell division didn't take place, you would just constantly be losing skin cells.