Answer:
Cellular differentiation is the process by which a less specialized cell matures into a more specialized cell. It is a part of developmental biology.
Well for one the sense of taste aquires smell and frangances and flavoring.
Has normal (2n) amount of DNA;
Has twice (4n) the normal amount of DNA
Oxygen. I got this answer because the process of Oxidation is when oxygen bonds with an element. Such as Iron Oxide, which is rust. So oxygen does, infact, have more of a role in chemical weathering.