Answer:
They need backups.
Explanation:
If the organism only has one food source they will use up that resource and eventually the organism will deplete due to lack of food.
His classification system divided prokaryotes into two domains: archaea and bacteria. This helped to further classify prokaryotes more effectively, revolutionizing taxonomy.
Answer:
The independent variable is "controlled" or held constant in the control group. A single experiment may include multiple experimental groups, which may all be compared against the control group. The purpose of having a control is to rule out other factors which may influence the results of an experiment.
Explanation:
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