Question

Which of the following grouping below is NOT a group of organ systems?.
a. skeletal system, muscular system, nervous system.
b. endocrine system, digestive system, nourishing system.
c. integumentary system, excretory system, circulatory system.
d. respiratory system, immune system, reproductive system

Answer 1

Answer: B
 Nourishing system is not a group of organ systems.

Answer 2

Answer:

The answer is D.

The immune system is NOT an organ system.