Concept explainers
To determine: Theeffect of sympatric and allopatric
Introduction: Evolution is the change in the
Explanation of Solution
Adaptive radiation is an important concept in evolutionary biology. The adaptive radiation is one of the few processes that allow the divergence or convergence of two or more species. Adaptive radiation requires both allopatric and sympatric speciation along with adaptation to different habitats. Speciation mainly occurs allopatrically and leads to rising of species that colonize other islands producing multiple species per island.
To determine: The relationship between the sympatric speciation and character displacement.
Introduction: Evolution of organism results into various types of accumulations in the genes of an organism that enable an individual to adapt in the changing environment.
Explanation of Solution
Sympatric speciation also occurs during the course of multiple generation because of disruptive selection and can result in the population to contain individuals exhibiting two different phenotypes. The instantaneous sympatric speciation occurs when an individual born is reproductively isolated from all other members of its species. A mutation that would cause an individual to be different from other members of species result in pleiotropic effects and subsequently end in adaptive radiation.
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- What are the most common mechanisms of sympatric speciation and in which major group of organisms does this happen often? Distinguish between sympatric, allopatric and parapatric speciatio. Which is considered the (far) more common mechanism of species formation? What does "gene flow" between populations do?arrow_forwarda) How many of the gene trees do you expect to look like the species tree? b) You observe three gene trees in which species X and Z are the closest relatives and seven gene trees where X and Y are the closest relatives. What can you conclude from these data? Group of answer choices Historical hybridization between species W and X Historical hybridization between species X and Y Historical hybridization between species X and Z Historical hybridization between species Y and Zarrow_forwardOver time, enough genetic variations can develop within a population to cause it to undergo speciation. Identify the various mechanisms that will prevent different species from being able to reproduce successfully. Which of these mechanisms is the most influential in keeping species sperate?arrow_forward
- How come dispersal is still allopatric speciation? I was under the impression that a new geographical barrier would have to develop and separate a once-uniform species. Also, what's the difference between vicariance and allopatric speciation?arrow_forwardwhat is the explanation of peripatric and parapatric speciation?arrow_forwardSpeciation can be initiated when grasses colonise contaminated soils at former mine sites from adjacent benign soils. What type of speciation is occuring here (allopatric, parapatric or sympatric)? explain your answer.arrow_forward
- What are the most common mechanisms of symptoms speciation and in which major ground of organisms does this happen most often? Distinguish between sympatric and allopatric and parapatric speciation. What is considered the (far) more common mechanism of species formation? What does "gene flow " between populations do?arrow_forwardWhat are the most common mechanism of sympathric speciation and in which major group of organisms does this happen most often? Distinguish between sympathric and allopathric and parapathric speciation. Which is considered the (far) more common mechanism of species formation? What does "gene flow"between populations do?arrow_forwardWhat is speciation? List any two events that lead to speciation?arrow_forward
- Differentiate between allopatric and sympatric speciation. What mechanisms of evolution are most likely in each case to cause divergence?arrow_forwardWhat are the most common mechanisms of sympatric speciation and in which major group of organism does this happen most often?distinguish between sympatric and allopatric and parapatric speciation what is considered the(far)more common mechanism of species formation?what does gene flow between population does?arrow_forwardcompare and contrast between the following a) allopatric speciation and sympatric speciation. b) autopolyploid speciation and allopolyploid speciation c) natural selection and sexual selectionarrow_forward
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