11. Which teeth are used for Grinding and crushing food before it is swallowed?
a. incisors and premolars
c. premolars and molars
b. canines and incisors
d. canines and molars
12. What is the role of the large intestine in the digestion process?
a. It secretes bile,
cit secretes enzymes that digest proteins.
b. it absorbs some of the water and salts d. It serves as a temporary storage of water and food.
13. What do you call the opening at the end of the digestive tract where undigested
materials are excreted?
a anus
b rectum
c small intestine d. large intestine
14. . Which part of the digestive system physically digests the food?
a. saliva
b. esophagus
c. teeth
d. large intestine
15. Which is NOT an accessory organ in the digestive process?
a. appendix
b. liver
c. pancreas
d. gallbladder​