Which of the following organ systems perform interrelated functions within the human body?
I. excretory and digestive
II. circulatory and respiratory
III. reproductive and endocrine
IV. skeletal and muscular
A.
I, II, III, and IV
B.
II and IV only
C.
I, II, and IV only
D.
IV only
1 answer
C. I, II, and IV only