CBSE Class 7 Answered
Explain the breathing mechanism in insects.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Insects have a network of air tubes called tracheae for gas exchange. Oxygen rich air rushes through spiracles (or small openings) into the tracheal tubes, diffuses into the body tissue, and reaches every cell of the body. Similarly, carbon dioxide from the cells goes into the tracheal tubes and moves out through spiracles. These air tubes or tracheae are found only in insects.
Answered by | 04 Jun, 2014, 03:23: PM
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