Biology, 06.11.2020 17:20, tdbstonefamliy

Suppose a scientist is doing an experiment to determine the effect of an all-organic diet on the occurrence of cancer in rats. Which of the following would be the best control group for this experiment?
A. Rats fed a standard rat diet (not organic)
B. Rats fed an all-organic diet
C. Pats fed an all-organic diet, but half the amount of normal
D. Rats that are not fed anything

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Suppose a scientist is doing an experiment to determine the effect of an all-organic diet on the occ...