Question

3) Windpipe has cartilaginous ring.Explain

5) How frogs breathe?​

Answer 1

The function of the cartilaginous rings of the trachea in respiratory system is to stabilize the trachea and keep it rigid while allowing the trachea to expand and lengthen when the person breathes. ... The cartilage rings are C-shaped because the back of the trachea presses against the esophagus

(ii)When the frog is out of the water, mucus glands in the skin keep the frog moist, which helps absorb dissolved oxygen from the air. A frog may also breathe much like a human, by taking air in through their nostrils and down into their lungs.

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Answer 2

Answer:

1) The trachea maintains its rigidity by virtue of a series of cartilaginous rings arranged along its length called as the C- shaped cartilage rings. ... These rings stabilise the trachea and keep it rigid, while allowing the trachea to expand in length when the person breathes. Cartilage is strong but flexible tissue.

Answer

2)When the frog is out of the water, mucus glands in the skin keep the frog moist, which helps absorb dissolved oxygen from the air. A frog may also breathe much like a human, by taking air in through their nostrils and down into their lungs.