Tisane's aunt has been diagnosed with an excretory system disorder. Tisane is uncertain of the different parts of the excretory system, and she decides to research the system. About what parts of the excretory system does Tisane learn?

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.

How do living things obtain phosphorus

20 the compound al(nh3)2 has atoms of nitrogen.