<span>The answer is the option C. hypothesis. If the option A, confuses you, think that an experiment is not per se an explanation, it is just a way to run trials to determine something. Hypothesis are statements that establish a possible relations between facts but that are not proved. Then you can design an experiment to test the validity or not of the hypothesis. You should not make hypothesis that cannot be testable. </span>
If you are looking for a root word: -lysis.
Or an actual term: fission.
Macro economics is the study of aggregate economy from a branch in a general view while Micro goes into various branches into specific conditions of the economy
The answer is mutualism. Not only does the bacteria get food, we are helped with digestion! I hope this helps ^^