BIOL chapter 21 species and speciation

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important terms

Last updated 4:18 PM on 9/6/26
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20 Terms

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speciation

one species to new species

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species

can produce fertile offspring

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BSC

interbreed + fertile offspring (reproduction)

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Morphospecies

Looks similar (appearance )

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Cryptic Species

Look same, genetically different

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Hybrid Offspring

offspring from different species

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Niche

species role + needs

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Ecological species concept

species = unique niche

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Phylogenetic Species Concept

Species = common ancestor (ancestry)

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Geographic

Different place

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Ecological

Different habitat

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Temporal

different time

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Behavioral

different behavior

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Gamertic

sperm + egg don’t work

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Mechanical

can’t physically mate

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Genetic incompatibility

offspring has genetic problems

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Hybrid inviability

offspring doesn’t develop

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Hybrid sterility

offspring can’t reproduce

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prezygotic

before baby

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postzygotic

after baby starts