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Briefly Describe the LISA Model

question 20

Essay

Briefly describe the LISA model.


Definitions:

Allopatric Speciation

The evolution of new species after populations have been separated geographically, preventing gene flow between them.

Sympatric Speciation

The evolution of new species within a contiguous population that still has extensive gene flow.

Gametic Isolation

A type of prezygotic barrier where the gametes (egg and sperm) of two different species fail to unite or fertilize, preventing the formation of a zygote.

Hybrid Inviability

A postzygotic barrier where offspring resulting from the mating of two different species fail to survive to reproductive maturity.

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