I. Read and analyze each sentences. Write the letter of the correct answers on the
space provided.
1. How do the heart and lungs work together?
a. The lungs help the heart to pump blood.
b. The heart provides nutrients to the lungs.
c. The lungs help the heart provide nutrients to the body.
d. The heart pumps the blood to the different body parts while the lungs filter the blood before going back to the
heart.
2. Stomach and the brain are related to each other. In what way are they connected?
a. The stomach provides blood to the brain.
e ng gabi sa Barangay Bida.
b. The stomach provides oxygen to the brain.
c. The brain removes the waste of the stomach.
d. The brain controls the involuntary muscles of the stomach.
3. When you are in danger, your muscles move as fast as you can to protect yourself. How does this happen?
a. Your lungs control your muscles to move fast.
b. Your stomach commands your muscles to work rapidly.
c. Your brain reacts to the situation which results to rapid muscle movement.
d. Your heart tells you to react by controlling the movement of your muscles.
kanilang silid-tulugan
4. Your friend had an accident which damaged his brain. After the accident, he cannot move both of his legs. Why
did this happen?
N sa:
a. Your legs cannot anymore detect your brain.
b. The part of your legs connected to the brain was damaged.
c. The part of your brain commands your legs to stop moving.
d. The part of your brain that controls leg movement was affected.
5. How do stomach and intestines work together?
Fran?
a. The stomach receives the nutrients and water from the intestines.
b. The stomach absorbs the nutrients and water from the food digested by the intestines.
c. The stomach digests the food while the intestines remove the undigested food out of the human body.
d. The stomach squeeze, chum, and twist the food while the intestines absorb the water and nutrients.
6. How do the lungs work together with the other organs of the body? The lungs provide
a. oxygen needed by the brain
b. nutrients needed by the heart
c. food needed by the stomach
d. blood needed by the stomach
7. What do you think will happen if your heart will not pump blood?
a. The brain will not function properly.
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b. The kidneys will not have blood to be filtered.
c. The lungs will not be able to produce oxygen-rich blood.
d. All of these.
8. Rene always eats salty foods and drinks soda. His kidneys failed to function. Which of the following are the
effects of this to the other organs of the body?
a. The kidneys can regulate blood pressure well.
b. The kidneys can filter waste materials from blood which can be used by other organs of the body.
c. The wastes from the different organs and parts of the body will not be excreted as urine.
d. Both a and b.
9. Which of the following statements is TRUE?
a. The heart controls the brain functions.
b. The brain controls the involuntary muscles of the heart.
C. The lungs provides carbon dioxide rich blood to the heart.
d. The kidneys filters excretes the blood produced by the lungs.
10. The following statements are true, EXCEPT