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BIOL 121 Lecture Notes - Lecture 5: Zygote, Genetic Drift, Ecological Niche

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giraffes
27 May 2022
School
UBC
Department
Biology
Course
BIOL 121
Professor
Lynn Norman

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BIOL 121 Full Course Notes
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Related Questions

All of the following are examples of prezygotic reproductive isolating mechanisms EXCEPT:

Two plant species flowering at different times.
A male fiddler crab waving its claw to attract the correct mate.
The hybrid offspring of two species dying before birth.
Tigers and lions not mating because of differential habitat utilization.
Provide examples of the following prezygotic barriers to reproduction: Temporal isolation, Habitat isolation, Behavioral isolation, Mechanical isolation, and Gametic isolation

List 4 traits that may contribute to pre-zygotic reproductive isolation.

Be able to explain graphs showing greater pre-zygotic isolation among presently co-occurring (sympatric) pairs of species than among recently diverged allopatric pairs of species. Why does pre-zygotic isolation rapidly evolve when species co-occur in sympatry? Why don’t allopatric species pairs show pre-zygotic isolation when you put them together?