Which organ or organ system has the greatest tolerance for lack of perfusion (shock?

Aplant has an egg with 34 chromosomes how many chromosomes does a leaf cell of that plant have

Which of the following statements regarding anfinsen's denaturing experiments with ribonuclease a (rnase a) are valid? exposing the denatured protein to air oxidation and then dialysis to remove urea restored the protein to its original functionality. removing urea by dialysis and then allowing air oxidation of the denatured protein restored the protein to its original functionality. denaturing the protein with both urea and β-mercaptoethanol yielded an inactive protein. anfinsen concluded that protein folding is determined by its primary sequence.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks