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Cluster of air sacs in lungs are called

Alveoli are tiny sacs at the terminal part of the bronchioles within our lungs. It is the place where oxygen and carbon dioxide moves between the lungs and blood capillaries.

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5

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Mangrove trees respire with their ________________.

 1

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We will find vocal cords in

 3

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Which of the following is correct?


i. the diaphragm contracts – volume of chest cavity increased


ii. the diaphragm contracts – volume of chest cavity decreased


iii. the diaphragm expands – volume of chest cavity increased


iv. the diaphragm expands – volume of chest cavity decreased

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Respiration is a catabolic process because of