Answer:
Their Cell walls
Explanation:
Bacteria has a cell made up of peptidoglycan
Archaebacteria has a cell wall made of various compounds)
Their rRNA is different, so different taht tehy are placed on different part of the evolutionary tree.
Lack of antibodies because thats the stuff to fight things away
Answer:
did you ever get the answer to this because i need it
Explanation:
The answer is population I think
