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it leads to specification because you separate the populations and a population with a certain trait will become dominant over a certain area of land or mass.
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∙ 14y ago
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How can reproductive isolation lead to speciation?
Reproductive isolation separates the reproduction of one population into two populations. Over time after generations, the two separate populations start living and reproducing differently, so they evolve into two separate species, which is speciation (also known as divergent evolution). Reproductive isolation and speciation reduces gene flow.
Why is isolation important in evolution?
It is the reproductive isolation between populations that allows divergence between populations, and ultimately speciation, to occur. Often this reproductive isolation is the result of geographical isolation, for instance when part of a population migrates to new territories.
Does geographic isolation contribute to evolution-?
A geographic barrier eg mountain range, river, ocean, desert, can split a species into two populations which can no longer mix with each other. By splitting up a species into two separate populations a geographic barrier can lead to the formation of a new species. The two separate populations start to develop in isolation from each other. Different mutations will occur in the two populations and natural selection will adapt them to the slightly different conditions in the two areas. Given enough time the two populations will become so different that if they are brought together again they will no longer be able to interbreed ie they will have become two different species. This is called allopatric speciation.
What does geographic isolation lead to?
Reproductive isolation
How can islation lead to formation of new species?
Allopatric Speciation (geographic isolation) can lead to the formation of a new species because the population is split in two smaller populations by a physical barrier (river, canyon, mountain...).
What is the condition in which two populations cannot interbreed called?
isolation
What causes geographic isolation?
Geographical isolation involves the separation of a group of organisms from the rest of the population, or a population from other populations by geographical means, be it by volcanic activity, a flood, a new river that cannot be crossed. The idea being that the population can only breed with itself and not with other populations, leading to genetic isolation. This is called the founder effect. The separated organisms can only mate amongst themselves, reducing their genetic diversity as they have a limited range of alleles. This can lead to speciation etc...
What is the is the first step in allopatric speciation?
physical isolation of two populations
Two populations kept separate by a river are characterized by?
Geographic isolation
What kind of isolation occurs when two populations are capable of interbreeding but have differences in courtship rituals or other types of behavior?
behavioral isolation
Why do geographic isolation cause speciation?
It prevents the two populations from interbreeding. :) -Apex-
When two species become so different that they can no longer breed it is called what?
On my worksheet for biology the possible answers for that exact question areinfertilityextinctionisolationselection.hope that narrows it down_____________________________The answer is: isolation.
