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Question
In cockroach, O2 is carried to tissue by:
In cockroach, O2 is carried to tissue by:
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Solution
The correct option is C Tracheal tubes
A cockroach has small
openings on the sides of its body. These openings are called spiracles. Insects have a network of air
tubes called tracheae for gas exchange.
Oxygen-rich air rushes through spiracles
into the tracheal tubes, diffuses into the
body tissue, and reaches every cell of
the body. Similarly, carbon dioxide from
the cells go into the tracheal tubes and
moves out through spiracles. These air
tubes or tracheae are found only in
insects and not in any other group of
animals.
So, the correct option is C.
A cockroach has small openings on the sides of its body. These openings are called spiracles. Insects have a network of air tubes called tracheae for gas exchange. Oxygen-rich air rushes through spiracles into the tracheal tubes, diffuses into the body tissue, and reaches every cell of the body. Similarly, carbon dioxide from the cells go into the tracheal tubes and moves out through spiracles. These air tubes or tracheae are found only in insects and not in any other group of animals.
So, the correct option is C.
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