The variable that is intentionally manipulated or changed in a controlled experiment is know as the B) Independent Variable.
This is done, as the question states, to test the hypothesis. In other words, it is changed in order to see what results are produced, then the results are analyzed, and ideally an explanation of the changing results will arise and progress can be made in the experiment.
They explore around the bayous when they are frogs
They live in groups for protection from predators could be one
Answer:
I this this is the answer hope it helps :)
Explanation:
D. Chemical bonds in food molecules are broken, releasing energy and allowing cells to use the energy to make ATP.