Some help quick are responsible for the structures and
functions of organisms.
DONE

Cells

Explanation:

The answer is cell.

Hope it helps :)

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.