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JAMB Biology 2017 Objective — Question 40

Question 40 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2017 Objective paper, with the correct answer and a full explanation.

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The most efficient respiratory structure used by free-living protozoan is

  • A. A. body surfaceCorrect
  • B. B. gills
  • C. C. buccal cavity
  • D. D. spiracle

Explanation

Free-living protozoans respire efficiently through their body surface; fishes use gills, and amphibians use the buccal cavity.

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