direction: encircle the letter of your choice
1. which are the organs of the respiratory system
A.lungs heart and blood
B. rib cage diaphragm and lungs
C. nose lungs heart and passageways that lead to the lungs
2. what important activity takes place in the lungs
A. food is digeted
B.liquid waste is filtered from the blood
C.the trached is exchanged for the larynx
3. what happens in the diaphragm when we exhale (breathe out)
matinong sagot e brainliest ko
1. which are the organs of the respiratory system
A.lungs heart and blood
B. rib cage diaphragm and lungs
C. nose lungs heart and passageways that lead to the lungs
2. what important activity takes place in the lungs
A. food is digeted
B.liquid waste is filtered from the blood
C.the trached is exchanged for the larynx
3. what happens in the diaphragm when we exhale (breathe out)
matinong sagot e brainliest ko
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answer:
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Explanation:
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Answer:
1. C
2. The main function of the lungs is the process of gas exchange called respiration (or breathing).
3. When you breathe in, your diaphragm contracts (tightens) and flattens, moving down towards your abdomen. This movement creates a vacuum in your chest, allowing your chest to expand (get bigger) and pull in air. When you breathe out, your diaphragm relaxes and curves back up as your lungs push the air out.
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