Nitrogenous metabolic wastes in our body are the products of

Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous wastes $(A, B, C)$ they give out?
$A-$ Ammonotelic,$B-$ Ureotelic,$C-$ Uricotelic

Waste products of adenine and guanine metabolism are excreted by man as

Which substance is finally excreted in the urine in humans?

Two examples in which the nitrogenous wastes are excreted from the body in the form of uric acid are

Which of the following enzymes helps in the production of urea?