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There are no discrete steps to speciation. There are a number of boundary conditions that are met in most cases. Speciation is the result of any situation that leads to the genetic, behavioural and/or morphological divergence of subpopulations of the same species, which may in turn lead to a decline in interbreeding frequency. The causes for such divergence may vary. The clearest example of the principle is when two subpopulations become geographically isolated (for instance due to migration, floods or some other natural event), and diverge as a result of genetic drift. Once the two population have diverged to the degree that they would no longer produce fertile offspring together even if they were put back together again, we say that speciation has occurred.
What else can I help you with?
Which type of evolution requires speciation?
Speciation is the evolutionary process by which new biological species arise.
What affect do humans have on speciation?
As part of the environment of other organisms humans can have great effects on speciation. Especially adaptive radiation. As we contribute heavily to the extinction of some species other species flow into those open niches and radiate outwards to possible speciation.
What effect would a very short generation time such as bacteria have on speciation?
Well they would evolve faster, so speciation would occur faster too
What is the difference between allopatric and sympatric speciation?
Allopatric speciation occurs when a population is geographically isolated, leading to the development of new species due to evolutionary pressures in different environments. In contrast, sympatric speciation happens when new species arise within the same geographic area, often due to factors like behavioral changes, polyploidy in plants, or niche differentiation. While allopatric speciation relies on physical barriers, sympatric speciation can occur without such barriers, emphasizing reproductive isolation mechanisms.
What is a Anagenesis?
Speciation without branching of the evolutionary line of descent.
What are two main steps in speciation?
finding two different sex's of animals and breeding them.. and makeing sure they are compatible.
What are three events that can lead to speciation?
Species (phylogenetically and genetically distinct animals from a common ancestor) form when barriers exist to prevent outbreeding. These are usually environmental (e.g. mountain ranges, oceans, climatic barriers) or biological (e.g. interbreeding of two species results in an infertile offspring).
Speciation caused by change in the course of a river is an example pf divergent speciation?
Allopatric speciation.
Types of Speciation?
sympatric , allopatric and parapatric speciation
Complete reproduction isolation is evidence that what has occurred?
speciation
What is necessary for speciation to occur?
Isolation Is necessary for speciation to occur.
Why does polyploidy not cause speciation or even be associated with speciation?
Actually it is.
Home of the independent response to separation?
if you are referring to the the worksheet the evolution of living things from the textbook holt science and technology, the answer is speciation
Which type of speciation occurs among the Galapagos islands finches?
allopatric speciation
What type of speciation requires a geographic barrier?
Alopatric speciation. " Other country. "
Which type of speciation occurred among galapagos islands finches?
allopatric speciation
What is the accepted theory of speciation?
Caralous linnaeus theory is accepted theory of speciation
