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Speciation
N/A
4
Biology
Undergraduate 1
02/26/2013
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Term
Species
 Definition
  • A group of individual that are similar in apperance( morphology) that can produce fertile offspring. 
Term
Prezgotic reproductive barriers (Prevent interbreeding)
 Definition
  • Ecological Isolation- live in diffrent habitant or enviroment
  • Temporal isolation- breed during d/t times ex cicadia
  • Mechanical isolation:- anatomy incompatible
  • behavioral isolation:- d/t courtship rituals (bird)
  • gametic isolation:- gametes rarely fuse
Term
Postzygotic
 Definition
  • hybrid inviability- abort during dev't
  • hybrid sterility- ex mule
  • hybrid breakdown- at first fertile the 2nd generation non fertile common in plants

 
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