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Choose the letter of the correct answer.
1. Why is the skeletal system important?
A. It absorbs nutrients into the blood and the cells,
B. It protects the human body skin.
C. It provides oxygen for the human body.
D. It serves as framework which enables the body to move.
2. Which muscles allow us to consciously move our arms and legs?
A. Cardiac muscles
B. Involuntary muscles
C. Smooth muscles
D. Skeletal muscles
3. Which organ serves to filter and warm the air entering it?
A. air sacs
B. bronchus
C. diaphragm
D. nasal cavity
4. Which of the following is the function of the nails?
A. Help regulate body temperature.
B. Help the body absorb heat from the sun.
C. Protect fingertips and toes.
D. Protect the scalp from heat.
5. What major part of the nervous system carries the messages to the brain?
A. esophagus
B. spinal cord
C. sense organ
D. nerves
6. Why is respiratory system important?
A. It enables blood to circulate.
B. It helps absorb nutrients in the food that we eat.
C. It consists of organs responsible for the exchange of gases
D. It distributes the oxygen and nutrients to the different parts of our body.
7. Which of the following is the function of stomach?
A. Stomach contains fluid.
B. Stomach expand when it's full.
C. Stomach helps digest food intake.
D. Stomach temporarily stores smaller components of food
pls help ​

Sagot :

Jananiaidn

Answer:

1. D

2. D

3. D (if not this then it might be bronchus, although bronchus is a passage way/airway to the resp system)

4. C

5. D

6. D

7. C

Explanation:

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