C. Convection.
That is the process you are describing.
The best answer would be enzymes since they are protein molecules and help build it. Enzymes also take part in reaction.
Absorption of heat by breaking down hydrogen bonds
Photosynthesis produce 02 (oxygen)
<span>Conjugation in which two cells temporarily combine in order to transfer genetic materials. After combination they then divide again, allowing of the information to pass and replace the previous members of the population.</span>
