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WAEC Biology 2009 Question 18

Question 18

Excretion

Which of the following organisms have kidney as their excretory organ?

  1. A.Fishes, amphibians, birds, man
  2. B.Fishes, amphibians, annelids, insects.
  3. C.Fishes, reptiles, birds, tapeworms.
  4. D.Fishes, protozoans, amphibians, man.
Show the answer and explanation

Answer: A (Fishes, amphibians, birds, man)

Explanation

Kidneys are found in vertebrates. Annelids use nephridia, insects Malpighian tubules, tapeworms flame cells and protozoans contractile vacuoles.