1.The splitting of a heavy, unstable nucleus into two lighter nuclei is called . a. Fission
b. Fusion
c. Radioactive Decay
d. Isotopes

A) Fission

Explanation:

Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy.

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

answer: they produce more slow than unicellular organisms.