Explana
D) All of the choices are correct
Trypsin<span> is formed in the small intestine when its proenzyme form, the trypsinogen produced by the pancreas, is activated. </span>Trypsin<span> cleaves peptide chains mainly at the carboxyl side of the amino acids lysine or arginine, except when either is followed by proline. It is used for numerous biotechnological processes.</span>
I think to get more oxygen for the lungs. Hope this helped.
They do that method because the chemicals, water, or whatever is good for the plants. It is not good for us but good for them. It is sad, it really is. Or it can aslo be becayse it is a cheaper option.
(PLEASE DONT QUOTE ME ON THIS I AM NOT SURE.)