Different species occurring in different geographical areas are known as
A
Demes
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B
Sibling species
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C
Sympatric
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D
Allopatric
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Solution
The correct option is D Allopatric Allopatric species arise when a small group of population gets separated from the main population by geographical barriers.
Groups of organisms from the same ancestral population evolve into separate species without any geographical separation to give rise to sympatric species.
Sibling species are pairs or groups of genetically closely related species which are often morphologically indistinguishable. These species are reproductively isolated which implies that they may interbreed but the offspring cannot reproduce.
A deme is a group of individuals that belong to the same taxonomic group that are partially isolated from each other.