Question

The spiracles open into a network of tubes called​

Answer 1

Answer:

The answer to this is trachea

It is the respiratory organ in insects.

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Answer 2

Answer:

Insects have a network of tubes called tracheae or tracheal tubes, which are responsible for their respiration. Oxygen enters these tubes through several spiracles, which are valve-like openings in the exoskeleton. In insects, spiracles are situated laterally on the thorax and abdomen. Small muscles in each spiracle control their opening and air flow. Carbon dioxide is also expelled through the spiracles.