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7 Cards in this Set
- Front
- Back
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The different Species Concepts
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The biological species concept, the ring species concept, the morphological species concept, the genealogical species concept, and the ecological species concept.
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Prezygotic Barriers
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Temporal isolation (time, habitat isolation (don't live in the same kinds of places, behavioral isolation (no attraction, mechanical isolation (doesn't work), gametic isolation (gametes can't form zygote)
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Postzygotic Barriers
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Hybrid inviability (genes aren't compatible, hybrid sterility, hybrid breakdown (infertile kids)
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Allopatric Speciation
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geographic barriers isolate populations and block gene flow.
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Sympatric Speciation
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A reproductive barrier between the mutants and the parent population.
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Gradual Model
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Populations evolve gradually as they adapt to their local enviroments.
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Punctuated Equilibrium Model
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New species diverge in a breif time due to spurts of evolution.
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