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The defination of species says ' The organisms which can reproduce among themselves giving rise to new individuals having reproductional potentialities'. Now when new species are produced due to the isolation of the individuals of a species byb environmental barriers then the individuals reproduce with rthe members of the other species giving rise to another species which is not possible because the offsporings formed by the copulation of individuals of different species give birth to sterile organism. Then hgow are new organisms formed due to geographical isolation?

Asked by tultuldutta58 16th October 2017, 12:27 AM
Answered by Expert
Answer:

Geographic isolation causes speciation because members of a population are unable to reproduce with one another. This reproductive isolation prevents mixing of the gene pool and allows each population to evolve along different paths according to the specific pressures present in the differing environments.

Members of a population may become geographically isolated due to changing climate or terrain. Once isolated from the main group, a population begins to adapt to the specific environment in which it is located. If the environments are diverse, a population that is geographically isolated from other members of the population may diverge into a separate species over time.

Basically, geographical isolation does not lead to the formation of new organisms within a species. In fact, it leads to the formation of a new species.

Answered by Expert 16th October 2017, 11:59 AM
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