Answer:
scientific theories are mostly approved after they have been researched fully and can be backed up with evidence.
Explanation:It is less unlikely that the theory will change except that it can be improved when the new evidence is discovered due to the fact that they are based on discovered evidence.
Theory of gravity for example there is a proven evidence that there is a pulling force knows as the force of gravity that keeps us from floating on earth whereas in space the lack of that force causes one to float this is backed up by evidence that are visible and can be tested all over again.
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.
A because Peter's last name is Mar and comes before the others alphabetically
The first one because it has a conjunction
