What is part of an animal's excretory system?\nOptions:\n- (A) alveoli\n- (B) garbage chute\n- (C) pollen\n- (D) glucose\n- (E) bloodstream\n- (F) kidneys\n- (G) food\n- (H) intake
Let's be accurate as possible and think first.
(F)
Organs of excretion make up the excretory system.

Leptospiral organisms cause infection in the kidneys and are excreted in urine.

Kidneys are part of the excretory system.

.

So, the final answer is (F)