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8 June, 10:42

Adaptive radiation in island chains

(finches; honeycreepers)

Exploiting a new niche in a common

location

Extrinsic factor prevents two or more

groups from mating with each other

regularly

Gene flow has been reduced between flies

that feed on different food varieties, even

though they both live in the same

geographic area.

Genetic polymorphism results in

reproductive isolation

Population isolated from another due to

geographic barrier

Populations remain in same physical area.

The gradual formation of the Grand

Canyon split a population into 2 divergent

species

Allopatric Speciation

Sympatric Speciation

+2
Answers (1)
  1. 8 June, 10:56
    0
    Exploiting a new niche in a common location - Allopatric Speciation

    Extrinsic factor prevents two or more groups from mating with each other

    regularly - Sympatric Speciation

    Gene flow has been reduced between flies that feed on different food varieties, even though they both live in the same geographic area - Sympatric Speciation

    The gradual formation of the Grand Canyon split a population into 2 divergent

    species - Allopatric Speciation
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