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10 Cards in this Set
- Front
- Back
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Micro evolution
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-Change over time on a relatively small scale.
-Subtle change -Driven by natural selection |
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What point does micoevolutions go up to?
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Everything short of speciation
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Example of microevolution
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pepper moths
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things that change by accelerated by
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Shorter generations (bacteria it can be minutes)
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Give an example of sexual selection influencing natural selection.
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Irish Elk
-Giant Antlers caused more females and less males, eventaully screwing the organism |
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Macroevolution
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-we can't witness it
-results in a new species |
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Types of speciation
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Sympatric(No physical barrier)
Allopatric (divided population) |
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Sympatric
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Some divide [NOT GEOGRAPHICAL]
-behavioral or physiological -results in non-random mating -eventually speciate |
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Example of sympatric evolution
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Flys
-Divider-mating tree prefence -Hawthorne fly liked mating on hawthorne tree -Apple maggot fly-> mates on apply trees |
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Allopatric
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Divider IS geographical
Ex: Grand Canyon; tassel eared squirells |
