The Tracheal System of Insects

question 10

Multiple Choice

The tracheal system of insects

• A) helps remove metabolic wastes from their bodies.
• B) makes a respiratory pigment in their hemolymph unnecessary.
• C) relies on the expansion and contraction of the body wall to move air into and out of the system.
• D) is limited to the posterior end of the body.
• E) digests food and distributes nutrients to the body.

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