7.10 and megasheet - allopatric and sympatric speciation
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8 Terms
what is allopateric speciation?
populations separated by physical barriers > 2+ distinct species
what causes allopateric speciation?
geographical isolation
what are some examples of geographic isolation in allopateric speciation? (3)
mountain ranges, rivers, man made structures
what is sympatric speciation?
forming new species without physical barriers
in other words, sympatic speciation is like…
band kids and football kids sit in groups
what causes sympatric speciation? (2)
sexual selection, disruptive selection
how does allopatric speciation lead to rformation of new species?
genetic/phenotype differences between populations increase > reproductive isolation > new species forms
how does sympatric speciation lead to rformation of new species?
prefrences > repoductive isolation > new species forms