Answer:
A.
Explanation:
It shows a clear view of what a group of cells of a plant would be like.
Well there is not much to go off of, but I am very confident the answer would be studying fossil records,
In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... 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.
