EVOLUTION
EVOLUTION OF A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Occurs when a physical barrier divides one population into two or more populations
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Occurs when a reproductive barrier divides one population into two or more populations
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Occurs when species evolve into a new species without a physical barrier
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Occurs when species into into a new species at random
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Detailed explanation-1: -Sympatric speciation occurs when there are no physical barriers preventing any members of a species from mating with another, and all members are in close proximity to one another. A new species, perhaps based on a different food source or characteristic, seems to develop spontaneously.
Detailed explanation-2: -Sympatric speciation is the evolution of a new species from a surviving ancestral species while both continue to inhabit the same geographic region. In evolutionary biology and biogeography, sympatric and sympatry are terms referring to organisms whose ranges overlap so that they occur together at least in some places.
Detailed explanation-3: -Sympatric speciation, from the Greek ‘same place’, involves the splitting of an ancestral species into two or more reproductively isolated groups without geographical isolation of those groups.
Detailed explanation-4: -In multicellular organisms, sympatric speciation is uncommon but plausible process by which genetic divergence (through reproductive isolation) of various populations from a single parent species and inhabiting the same geographic region leads to the creation of new species.