EVOLUTION
HISTORICAL CONTEXT FOR EVOLUTIONARY THEORY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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species isolation
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geographic isolation
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reproductive isolation
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evolutionary isolation
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Detailed explanation-1: -The theory of punctuated equilibrium states that evolutionary change is characterised by short periods of rapid evolution followed by longer periods of stasis in which no change occurs.
Detailed explanation-2: -There are four major variants of speciation: allopatric, peripatric, parapatric, and sympatric. Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.
Detailed explanation-3: -Speciation involves reproductive isolation of groups within the original population and accumulation of genetic differences between the two groups. In allopatric speciation, groups become reproductively isolated and diverge due to a geographical barrier.
Detailed explanation-4: -Hybrid speciation is a form of speciation where hybridization between two different species leads to a new species, reproductively isolated from the parent species.