Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
SpeciationFocusQuestions 1. Summarizethekeydifferencesbetweenallopatricandsympatricspeciation. Whichtypeofspeciationismorecommon,andwhy? 2. Describetwomechanismsthatcandecreasegeneflowinsympatric populations,therebymakingsympatricspeciationmorelikely. 3. Identify,explainandgiveallexamplesoftheprezygoticbarriers. 4. Identify,explainandgiveallexamplesofthepostzygoticbarriers. 5. Supposeyouarestudyingtwobirdspeciesthatliveinaforestandarenot knowntointerbreed.Onespeciesfeedsandmatesinthetreetopsandthe otherontheground.Butincaptivity,thebirdscaninterbreedandproduce viable,fertileoffspring.Whattypeofreproductivebarriermostlikelykeeps thesespeciesseparateinnature?Explain. 6. Whatarehybridzones,andwhycantheybeviewedas“naturallaboratories” inwhichtostudyspeciation? 7. Compareandcontrastthemodelsatwhichthepaceofspeciationcanoccur. Whichismorelikely?