9. It is a hollow anyan that holds and squeezes the food while it is being mixed with gastric juices.
a liver
b. small intestine
cesophagus
d stomach
10. What do you call the process of breaking down of food into simple nutrients that can be used by
de body cells of the body?
a arculation
b. digestion
e respiration
d excretion
11. What system is responsible for talong in oxygen and expelling of carbon dioxide
a Craulatory System
b. Nervous System
c Respiratory system
Digestive System
12 These are grzpe-like structures at the end of the bronchules.
a Bronchi
b Alreoli
c Trachea
4 Gà
13. What gas do you talce in or inhale?
a Oxygen
b. Nitrogen
c Carbon dioxide
d. Hydrogen