When researchers study drug actions in rats in order to predict drug actions in humans they are using rats as?

They are using rats as animal models.

Explanation:

Rats are one of the most common animal models used in scientific experiments, from behavioral to biomedical studies. The principle that sustains this type of research is that animals share physiological and behavioral characteristics with humans. In the case of drug addiction studies, rats have been used to analyze drug consumption tendencies and effects.

the structure of state governments are determined by. "state constitutins'

under the us constitution, all state governments are.'republics'

the answer would be c. sediment buildup on continental slope

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