Answer: I think it is methanogenesis.
Explanation:
Nucleotides - they are molecules present in cells and are formed by nitrogenous bases
During meiosis, genetic recombination may occur more than once through the process of cell division, resulting in an increase in genetic variability.
The primary role of hydrochloric acid is to sterilize the food you eat and to prevent harmful bacteria from entering the GI tract. HCL also triggers the release of enzymes such as pepsin which are essential for the digestion of protein.
When your body turns your food into energy it can heat your body which is called cellular respiration. Not sure if this is what you were looking for?