The main idea of this paragraph is that, without cells, there would not be any organism. As it is said, according to biologists there are<u> five levels </u>of cell organization in organisms, which, working together as a colony, can form from tissue to a whole body system able to live by itself.
Answer: b
Explanation:
the other doctor is an expert and backed him up
The best definition would be...
A written document made by hand
~Hope I Helped
