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WAEC Biology 1994 Question 44

Question 44

Respiration

In which of the following organisms is the siphon found?

  1. A.Tadpole
  2. B.Pupa of mosquito
  3. C.Tilapia
  4. D.Crayfish
  5. E.Butterfly
Show the answer and explanation

Answer: B (Pupa of mosquito)

Explanation

Mosquito young hang from the water surface and breathe air through tubes (siphon in the larva, trumpets in the pupa).