Question

one group is fed nominal diet, another group is fed the same diet but with one necessary mineral left out. the animals receiving the normal diet remained healthy; those in the other group grew weaker. what is considered the experimental group in this experiment? (p. 16) the group fed the diet without one mineral both groups the group fed the normal diet

Explanation:

In an experiment, the experimental group is the one that receives the treatment (in this case, the diet without one necessary mineral) to test the effect, while the control group (here, the group with normal diet) is for comparison. The option "the group fed the diet without one mineral" is the experimental group as it has the manipulated variable (missing mineral).

Answer:

the group fed the diet without one mineral