Answer:
We know that all cells come from pre-existing cells because of cell division.
The element Carbon is present in the human body
It will be C because if a lower energy bonds are formed from breaking higher energy bonds then there will be excess energy to fuel other processes.
Carbohydrates are organic compounds that are organized as ring structures and are always composed of the elements carbon, hydrogen, and oxygen. Carbohydrates are truly hydrates of carbon because the ratio of hydrogen atoms to oxygen atoms is always nearly 2:1, as in H2O.
<span>In the past, human populations were controlled by </span>Disease and Famine