HELP What was the most significant result of President Johnson's impeachment?

•Reconstruction was able to move forward without his interference.

•Andrew Johnson had to resign as president and leave office.

•Johnson was convicted and a new president was elected.

•Presidents were no longer allowed to fire government officials.

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.

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?

Refers to the biological heritage people use to identify themselves.