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  • Biology Test 4 (Part - I)
  • In allopatric speciation, the initial barrier to gene flo...
Multiple choice

In allopatric speciation, the initial barrier to gene flow is

  1. behavioral

  2. postzygotic

  3. geographic

  4. ecological

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Allopatric speciation, the most common form of speciation, occurs when populations of a species become geographically isolated.

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