Multiple Choice Questions for Respiratory System Related

Review Multiple Choice Questions for Respiratory System related questions and content

Rectal respiration is seen in

  • A. Cockroach
  • B. Spider
  • C. Niads of Dragon fly
  • D. Water flea
Correct Answer: C

Rationale: Rectal respiration in insects involves the exchange of gases through the anus. The correct answer is C, Niads of Dragonfly, as they have specialized structures called rectal gills for respiration. Cockroach (A), Spider (B), and Water flea (D) do not possess rectal gills or exhibit rectal respiration. Cockroaches have spiracles for respiration, spiders have book lungs or tracheal systems, and water fleas have gills located elsewhere on their bodies. Thus, only Niads of Dragonfly demonstrate rectal respiration, making it the correct choice.