The theory would be endosymbiont theory. It was developed on the idea that some eukaryotic organelles come from prokaryotic organisms. It is also known as symbiogenesis. This theory says that these organelles were first from prokaryotic cells that is living inside a host cell.
It is the sciatic nerve that runs down the thigh, leg and foot
Adenosine triphosphate(ATP) transfer energy by doing phosphorylation. ATP has three phosphate molecule and it will release one phosphate when releasing energy(exergonic reaction), become ADP + P. ADP could be reused by catching energy(endergonic reaction), makes them catch a phosphate molecule and reform into ATP.
The attraction between a hydrogen atom on one water molecules and the oxygen atom on another is known as the hydrogen bond.
The testes is responsible for
creating sperm cells. It is the male reproductive organ found below the penis.
