Answer:
D) The transfer of peoples, diseases, plants, and animals between the new old worlds.
Answer:
A group comparison study
Explanation:
In group comparison study, an experiment compares two groups(the beareaved and nonbeareaved adults in the above study) such as in testing the effects of a treatment where a "comparison group" receives either an alternative treatment or no treatment so that it functions as a source of "counterfactual" causal inference for the purpose of the experiment.
Answer: A.) He launched an attack against the us army to stop american indian removal
Explanation: i did the quiz and got it right <3