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25 May, 13:41

Speciation has definitely occurred when two groups of related organisms

A) cannot interbreed successfully.

B) have drastically different behaviors.

C) have drastically different appearances.

D) become permanently isolated from each other.

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Answers (2)
  1. 25 May, 13:42
    0
    a

    Explanation: its a
  2. 25 May, 13:55
    0
    I think it's will be A
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