Chimpanzees. they held the virus and their exposed blood gave it to humans
I believe it is lysosomes, because all cells have a cell wall which pretty much limits what goes in and out of the cell as a mitochondria is storage for food and stuff like that. also a nucleus is pretty much the cells brain so all cells have one.
That's how it mainly is isn't it..but it isn't always like that. There is real love.
The correct answer is C, i just took the test and i got it right.
Explanation:
Adenine Guanine Thymine Cytosine