It is either carcinogens or viruses (I think the first) I hope this helps!
2, because a theory is not a law that can not be changed, and new evidence can change a theory.
Explanation:
All cells have a plasma membrane, ribosomes,and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment. They both use ribosomes for producing proteins.
+sorry i made a mistake on the previous question. Prokaryotic cell doesn't have nucleus. I obviously didn't know the right meaning of this word bc im not a native english speaker
Aminos acids are used to build proteins