In an experiment the HYPOTHESIS is tested. The hypothesis is the assumption, that you make about something. Example would be, you believe (hypothesize) that the baking soda will react faster in vinegar than in water. You then test it out (or preform and experiment) to see if your hypothesis is correct or wrong.
Answer: The answer is, use of fertilizers (manure) in farming this is on study island
Explanation:
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e. The animal was endothermic and had a high metabolic rate
A virus, because it has a non-cellular structure.