Most speciation (formation of new species) occurs allopatrically. This means A. new species usually form when...

Most speciation (formation of new species) occurs allopatrically. This means
A. new species usually form when one species lives in the same location and same habitat for a long time
B. members of one species become separated geographically so that gene flow is stopped between the new populations eventually resulting in enough changes between the populations that they become different species
C. a catastrophy causes the formation of a new species by a bottleneck effect
D. gene flow between different populations in different locations prevents the gene pools of the populations from diverging
E. gene flow between different populations in different locations causes the gene pools of the populations to change.

Expert Solution

Answer: Option(B) members of one species become separated geographically so that gene flow is stopped between the new populations eventually resulting in enough changes between the populations that they become different species

Explanation
In allopatric speciation a geographic change separates members of a population into more than one group. Such changes could include the formation of a new mountain range or new waterway, or the development of new canyons. Also, human activities such as civil engineering, agriculture, and pollution can have an effect on habitable environments and cause some members of a population to migrate.

Option C mention about peripatetic speciation
Option A is incorrect because it does not mention about any physical barrier
Option D and E mention about different population which is not applicable to allopatric speciation as it states about speciation within the members of the same species.

gladiator answered 2 years ago

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