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Only natural selection appears to cause the adaptive change that can lead to speciation.
Answer 2
There are various different sets of circumstances that could lead to speciation. This is one example: consider two populations of the same species that are permanently separated from one another through some geographical happenstance. Both populations will experience genetic drift. And since genetic drift is (limited by natural selection, but still) essentially random, these populations will start to diverge - first genetically, and eventually behaviourally and anatomically. If enough time passes, these populations may have become so different from one another that even if they were put back together again, they would not (be able to) produce fertile offspring between them. At this point, speciation has occurred.
What else can I help you with?
Why does polyploidy not cause speciation or even be associated with speciation?
Actually it is.
Do mutations cause change in allele frequencies within a population?
Yes, they can. Mutation is one of the four main mechanisms of evolution.
What is the mechanism of evolution?
The main driving mechanism of evolution is natural selection. Though genetic drigt and gene flow can also cause evolution.
Why are evolution and adaptive capacity necessary responses to natural and unnatural mechanisms that cause changes in the biosphere?
If the species can not adapt to changes in the environment they will die out.
What is one cause of speciation?
One cause of speciation is reproductive isolation or the separation of the population of a species from other populations so that it can change without keep getting mixed with other populations( and therefore becoming identical to other populations).
Why do geographic isolation cause speciation?
It prevents the two populations from interbreeding. :) -Apex-
What is the formation of a new species as a result of evolution?
The process of the formation of a new species is called speciation.This usually requires some kind of event that splits a population into two or more isolated populations that can no longer interact. Ordinary evolutionary processes then act on each population independently, usually causing genetic divergencebetween the populations. If the divergence gets large enough that they either can no longer interbreed or refuse to interbreed between populations when again given the chance; then they are "new" species.
How does natural selection and evolution cause speciation?
Natural selection leads to changes in a population over time as individuals with advantageous traits survive and reproduce, passing those traits to their offspring. If these changes accumulate and lead to reproductive isolation between populations, new species can form through a process called speciation. This can occur through geographical isolation, reproductive isolation, or genetic mutations that create barriers to interbreeding.
What is evolution in genetic terms?
In terms of a population, evolution is just the change of allele frequencies over time. Natural selection can cause certain advantageous alleles to increase in frequency, and detrimental alleles to decrease in frequency.
How does isolation relates to speciation?
Isolation such as geological can cause speciation because if one species where divided into two because of geological reasons, they're likely to change their behaviors and physical appearances to match that region.
Does somatic mutation cause speciation?
Somatic mutations, which occur in non-reproductive cells, do not directly lead to speciation because they are not passed on to offspring. Speciation typically involves genetic changes that accumulate in the germline, leading to reproductive isolation between populations. However, somatic mutations can contribute to phenotypic variation within a species and may influence evolutionary processes indirectly, but they are not the primary drivers of speciation.
Is natural selection a cause of evolution?
No, natural selection is believed to result in evolution.
