What effects did spanish conquest and colonization have on north america

Which of the following studies is linked most directly to the establishment of the national research act in 1974 and ultimately to the belmont report and federal regulations for human subject protection? a. the public health service tuskegee study of untreated syphilis in the negro male.b. stanford prison experiment (zimbardo).c. tearoom trade study (humphreys).d. the harvard t3 study.

Brainliest to who answers! what is the function of a purchasing cooperative, or co-op?

This form of government has only a single political party. question 2 options: communist democratic autocratic parliamentary