This is the complete question,
Which of the following is the best definition of biogeographic isolation?
the separation of members of a species through geographical or biological forces the separation of members of different species through geographical forces the separation of populations of different species through time the separation of members of a species through anatomical forces.
Biogeographic isolation can be described biogeographic isolation is the separation of members of the same species which can interbred among themselves and produce viable fertile offsprings. Thus, option "4" is correct.
What do you understand by the term Biological isolation?
Biological isolation helps in creating the patterns of species distribution.
The species are distributed based on their geographical area and the characteristics such as speciation, continental drift and extinction, etc. the person can see the variation in species in sea level, river route and habitat.
The geographical distribution of the species was first studied by Charles Darwin. His book origin of species was based on this.
Thus, this could be the answer.
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