6. What is the function of the stomach?
a. It stores food
c. It provides nutrients
b. It breaks down food into smaller pieces d. It converts food into chemical energy
7. How does rectum and anus work?
a. They act as a temporary storage for the feces or waste materials before they are excreted
b. The food is mechanically digested
Add substance in the chyme to break down food
d. It produces saliva
8. How does food travel through the digestive tract?
a. Food moves down the tube because of gravity
b. Peristalsis in the esophagus pushes the food downward
C. The food particles stick to the wall of the digestive tract
d. The digestive tract is lubricated, enabling food to slide down
9. Which system of the body breaks down the food that you eat and transform it into a form that can be absorb by
the body?
a. Nervous system
c. Digestive system
b. Excretory system
d. Skeletal system
10. What organ of the urinary system acts as a temporary storage of unne?
a. Kidney b. Ureter
c. Urethra d. Urinary bladder
11 By what process does the body eliminate waste products from the body?
a. Circulation b. Digestion c. Excretion
d. Ingestion
12. What will happen to the body when the kidneys stop working?
a. The body accumulates poisonous substances in the blood
b. The body becomes healthy and strong
C. The body sweats a lot
d. The body will be dehydrated
13. What is NOT filtered from the body by the kidney?
0. Urea
c Oxygen
a. Excess salt b. Excess water
14. Urine is finally forced out of the body by the
a. Contraction of the smooth muscles of the bladder
b. Peristalsis of the smooth muscles of the ureters
C. The pumping of the cardiac muscles of the heart
d. The filtering of the nephrons of the kidney
15. What is the function of the kidney?
a. It filters and cleans the blood to remove waste substance and ensure that only useful substances stay in the
blood
b. It moves by peristalss to move umne towards the many ladier
c. It is where the urine is temporarily stored
d. It is where the urine leaves the body
16. What are the main organs of the nan sistem
a Bladder
b. ureters c. kidneys d. urethra​