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WAEC Biology 2012 Objective — Question 4

Question 4 of 60 from the West African Examinations Council (WAEC) Biology 2012 Objective paper, with the correct answer and a full explanation.

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The disadvantage of complexity of organisation in the higher organisms is that it leads to

  • A. mutual interdependence between component cells
  • B. internal structural specialization
  • C. increased adaptation to environment
  • D. slower rate of diffusion of oxygen to individual cellsCorrect

Explanation

Complexity, which is noted in higher organisms, makes diffusion an inefficient means of transport, hence the slower rate of diffusion of oxygen to individual cells.

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