Thanks to thinks like the Clean Water Act and the enforcement by the Environmental
Protection Agency most waters are cleaner
now than they were 50 years ago.
False
True

The rate at which molecules water and oxygen can enter a cell is determined by the-

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.

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)