The right side of the heart pumps blood to_________
A. all parts of the body
B. brain
C. kidney
D. lungs

13. The heart pumps blood that________.
A. contain oxygen only
B. contain both oxygen and carbon dioxide
C. contain both oxygen and food
D. contain carbon dioxide only

14. What is the function of the liver?
A. to break down food into smaller pieces
B. to break down food into tiny particles
C. to breakdown toxins and harmful substances
D. digest food

15. What happens to the food in the large intestine?
A. mixed with digestive juices
B. food is broken down into tiny particles
C. absorption of food nutrients
D. excess mineral and water from food is absorbed
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