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Just pick the abcd letter don't let it be ABCD When its Acbd thanks
1. Which of these is a common description of the brain? It is the __________.

A. main organ of the body
C. control capital of the body

B. control center of the body
D. most important body organ

2. What protects the brain?

A. hip bone
B. rib cage
C. skull
D. spinal column

3. Which part of the brain enables Mario to swim using his arms and legs?

A. brain stem
C. cerebrum
B. cerebellum
D. medulla oblongata

4. What is the main function of the heart?

A. filtering and cleaning of blood

B. pumping and circulating of blood

C. collecting and excreting of wastes

D. sending and interpreting information

5. Which of the following made up the heart?

A. blood streams

C. red blood cells

B. muscle tissues

D.whiteblood cells

6. What is the function of the atria? Where the blood __________

A. enters
B. exits
C. filters
D. stays

7. What organ system is the liver part of? __________ system

A. circulatory
B. digestive
C. nervous
D. respiratory

8. What does the liver digest and store?

A. bile
B. fats
C. nutrients
D. proteins

9. Which part of the lungs contains sacs called alveoli, where the exchange of gases
happens?

A. bronchi
B. bronchioles
C. lobes
D. pleura

10. Which of the following is eliminated (removed) during the breathing process?

A. body wastes C. air with oxygen

B. carbon dioxide D. blood without oxygen​