Answer:
Respiration is a person's breathing and the movement of air into and out of the lungs.
Explanation:
The respiratory system provides oxygen to body tissues for cellular respiration, removes the waste product carbon dioxide.
Its D all of them are correct
Answer:
digestion; mouth, esophagas, stomach, small intestine, large intestine
Explanation:
www.niddk.gov/digestion-system-how-it-works
I do not know anything about he digestive system since I am only in middle school, learning about earth science, so I looked it up ad this website came up.