From science class 10 ncert ch-6
1. What is the function of rings of cartilage?
2. How is oxygen transported in large multicellular
organisms like humans ?
3. Explain the movement of diaphragm during inhalation and exhalation.
Answers
Answered by
1
Answer:
the rings of cartilage prevent the collapse of the respiratory track when there is absence of air.
in multicellular org. oxygen cannot be diffused like in simple organism so have a special system for it.
during inhalation: diaphragm contracts to increase chest cavity to let in air
during exhalation: diaphragm relaxes to its normal dome shape to push the air out.
Best of luck
Plzz rate excellent
Similar questions