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WAEC Biology 2021 Objective — Question 50

Question 50 of 50 from the West African Examinations Council (WAEC) Biology 2021 Objective paper, with the correct answer and a full explanation.

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50. Which of the following statements is not Lamarck's postulate on evolution?

  • A. Great changes in the environment result in corresponding changes in species
  • B. Frequently used organs become well developed while the ones not used become vestigial
  • C. Well developed acquired characters are inheritable
  • D. Survivors in a competitive community must have inherited useful traitsCorrect

Explanation

The idea that survivors in a competitive community must have inherited useful traits reflects Darwin's theory of natural selection, not Lamarck's postulate of inheritance of acquired characteristics.

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