The answer is Ivan Petrovich Pavlov.
He was a Russian physiologist acknowledged principally for his work in classical
conditioning. From his juvenile days Pavlov revealed
intellectual inquisitiveness along with an uncommon vigor which he mentioned to
as "the instinct for research".
Has tolerance to the subjective effects but not the physiological effects of caffeine
<span>There is the abolition of slavery.There probably could be no Civil Rights Movement without the former slaves freedom. </span>
<span>The South lost a lot,and was disturbed economically and had to go through Reconstruction. The</span><span> Confederate flag still flies.</span><span>The war was a democratic experience or test for the people. </span><span>The Union was proved more important than states' rights. </span>
not fair at all but this is an opinionated question u literelly shouldnt be able to get it wrong