evolution since darwin
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Last updated 12:35 AM on 2/16/23
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4 Terms
1
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modern synthesis
integrates different fields to create evolutionary framework
2
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darwins finches
* derived from a common ancestor
* birds migrated to another island and speciation occured
* didn’t migrate back and forth to diff islands, very easy to track
* small pop to do research on
* 100% birds identified banded
* birds migrated to another island and speciation occured
* didn’t migrate back and forth to diff islands, very easy to track
* small pop to do research on
* 100% birds identified banded
3
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finch pt 2 results
* normal distribution, 9.4 mm avg beak depth
* BMP4 explained increase in beak size
* lots of variation over the years
* # of finches went down cuz enviro pressure dry szn
* before drought smaller beak depth, after drought change in larger beak depth
* even characteristics of seed type changes from small soft to large and hard
* body size change
* BMP4 explained increase in beak size
* lots of variation over the years
* # of finches went down cuz enviro pressure dry szn
* before drought smaller beak depth, after drought change in larger beak depth
* even characteristics of seed type changes from small soft to large and hard
* body size change
4
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sexual dimorphism
sexual characteristics
same spcies but both genders look very diff
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same spcies but both genders look very diff
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