Question

a growling stomach and the stimulation of hunger represent the
a. integumentary system and the endocrine system working together.
b. excretory system and the respiratory system working together.
c. digestive system and the nervous system working together.
d. muscular system and the skeletal system working together.

Explanation:

The stomach is part of the digestive system. Hunger is a sensation regulated by the nervous system. The growling of the stomach and the feeling of hunger are due to the digestive system signaling to the nervous system.

Answer:

C. digestive system and the nervous system working together