Respuesta :
C ardiovascular: Blood supplies digestive organs with oxygen and processed nutrients
Endocrine: Endocrine hormones help regulate secretion in digestive glands and acc...
Nervous: Sensory and motor neurons help regulate secretions
Endocrine: Endocrine hormones help regulate secretion in digestive glands and acc...
Nervous: Sensory and motor neurons help regulate secretions
Answer:
the layer that protect the body is the homeostasis and the mechanism is a negative feed back mechanism