My teacher ‍ assigned a homework and i wrote it on my planner and it starts with organism am i doing this right or there talking about body organs

I think you are doing it right, I'm not sure what the teacher wants you to do though.

genetic variation will increase because of a new habitat and food source.

explanation:

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.