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TNPSC Group-I 2021 · Question 138 of 148

According to Darwin, speciation is effected by ________.

Biology - Evolution

  1. Asmall continuous heritable variationCorrect
  2. Bsmall continuous non heritable variation
  3. Csudden heritable variation
  4. Dsudden discontinuous variation

Answer: A. small continuous heritable variation

Explanation

Darwin held that speciation is effected by small, continuous, heritable variations acted upon by natural selection.

Source: TNPSC Group-I Prelims (held 3 Jan 2021) - official paper via examrace.com

← Q137View full paper (148 questions)Q139 →

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