The answer should be digestion
Genetics I think I maybe wrong ok
HIV crossed from chimps to humans in the 1920's in what is now the Democratic Republic of Congo. This was probably as a result of chimps carrying the Simian Immunodeficiency Virus (SIV), a virus closely related to HIV, being hunted and eaten by people living in the area.
Corona is actually a word derived meaning “crown”. It is used in different places for different meanings. For example, if you have watched the movie “Tangled”, you will find that Rapunzel was a long lost princess of the kingdom of Corona.