Allopatric speciation occurs when populations are separated by

  1. polyploidy only
  2. behavioural differences in the same area
  3. different diets in the same area
  4. a geographical barrier
Answer

D) a geographical barrier

Allo = other place. AS & A Level Biology · Topic 17 Selection and Evolution · 17.3 Evolution

Biology MCQ · More A Level Biology: Selection and evolution MCQs · Practise