They train our immune system so it's ready when our bodies are attacked, and they aid in digestion and supply us with vitamins. ... Scientists and doctors can even utilize prokaryotes to help the human body.
Answer:
it's ground water because it just is just put groundwater
The younger rock would be black and have like no stains and it would not be as dirty as the older rock hope this helps!!1
The genetic info is found in the nucleus.