Question

5. Exchange of gases takes place here. 3 B. Write true or false for the following statement: 1. Bronchus is the site where exchange of gases takes place 2. Blood carries oxygen to each and every cell of the body, 3. The pharynx produces sound and is called voice box. 4. The hair present in nasal cavity filters the air to be breathed in 5. Food can also be broken down without oxygen 6. If a person is doing exercise then his breathing rate increases 7. Roots absorb oxygen needed for respiration through stomata Give reason:​

Answer 1

Answer:

alveoli

This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli

Explanation:

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Answer 2

Answer:

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