excretion of wastes are important to maintaining homeostasis. which three systems are involved in the excretion of wastes in humans?

a. urinary, skeletal, reproductive
b. circulatory, integumentary, muscular
c. digestive, respiratory, urinary
d. nervous, endocrine, immune

Respuesta :

I think it is D.
I'm not 100% sure though.
It would be letter D.
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