Please help i would give brainliest. Choose 1 exchange from the New World to Europe that had a major impact. Explain its significance.

one thing that the new world exchanged to Europe that had a major impact would be diseases, these diseases traveled all over the atlantic and over the world. Some of the diseases were major and could cause deaths.

(i honestly dont rlly know but hope this helps)

Explanation:

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.