<span>Level of depression/////////////</span>
Prana is the term for the vital life force energy that exists in every facet of our being and every atom and molecule in nature. It is the Sanskrit word for life force or vital principle is all cosmic energy, pervading the Universe on all levels.
Answer: D
Explanation: just because it's D.
I think that since they actually attach to cells inside the body, they don't count as cells. They're capable of getting in cells, but viruses themselves are actually made up of nucleic acid.