In the human body, which system functions primarily to defend the body against disease?
A B C D
digestive immune nervous respiratory
Question: In the human body, which system functions primarily to defend the body against disease?
(A) digestive
(B) immune
(C) nervous
(D) respiratory

Answer: (B) immune
Answer: (D) respiratory
Question: In the human body, which system functions primarily to defend the body against disease?
(A) digestive
(B) immune
(C) nervous
(D) respiratory
Answer: (B) immune