Help please, i really need the answer asap
1. During inhalation the diaphragm contracts or moves down, what happens to the chest cavity?
a. Expand
b. Relax
c. Moves down
d. Contracts
2. The movement of your rib cage and diaphragm causes the chest cavity to _____
a. Expand
b. Relax
c. Moves down
d. Contracts
4. When doing strenuous activities breathing will be
a. Speeds up
b. Slows down
c. Normal speed
d. Nothing changes
5. Where do we get energy being used in our body?
a. From the Sun
b. From the food
c. Water
d. Vitamins and Minerals
6. When you used your muscles too much you feel
a. Relax
b. Comfortable
c. Tired
d. Hungry
7. Carbon dioxide leaves in our body through
a. Inhalation
b. Exhalation
c. Respiration
d. Transpiration
8. When air goes to the air sacs oxygen goes to the
a. Wall of the air sacs
b. Wall of the lungs
c. Wall of bronchioles
d. Walls of the heart
9. Why do we need oxygen? All your answer are correct except one
a. To stay alive
b. To have energy
c. Break down sugar
d. To maintain balance
10. What is the major organ in the respiratory system?
a. Heart
b. Lungs
c. Kidneys
d. Brain
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Answer:
1. d
2.b
3.a
4.c
5.d
6.b
7.a
8.c
9.a
10.a