Question to you: 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 reason step-by-step:
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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. Final answer: (F).
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