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10 Cards in this Set

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  • Back
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list the major taxonomic catagories from most to least inclusive
kingdom, phylum, class, order, family, genus, species
king phillip came over for good sex
describe how a species is given a name using binomial nomenclature
-genus is the closest group a species belongs to. unique name
-species(specific epithet) refers to one species within each genus
genus and species
what is a domain?
it is the taxonomic category above the kingdom level.
Archaea, Bacteria, Eukarya
three above
what does the prefix sub- mean on a taxon?
lower taxonomic category compared to the one being classified. ex> several suborders would be in a single order
lower
what does the prefix super- mean on a taxon?
higher taxonomic category compared to the one being classified. ex> one or more orders would be in a super order
higher
why is it important to distinguish between homologous and analogous character traits when constructing a phylogeny?
homologous traits show how closely different species are related to each other. not always so with analogous traits.
>depends on taxonomic level also
homologous- siilarities based on shared ancestry
analogous- similarties due to convergent evolution
compare sympatric speciation and allopatric speciation
allopatric-geographical barriers, exposed to different environments. sympatric-chromosomal changes and nonrandom mating that reduces gene pool
allopatric-other homeland

sympatric-same homeland
compare cladogenesis and anagenesis
in cladogenesis, a new species breaks off from a existing species. in anagenesis, a species changes over time to new species
anagenesis-phyletic evolution
cladogenesis-divergent evolution
compare homologous structures and analogous structures
homologous structures have different functions, same underlying structure. analogous structures have same functions, different structures
homo Same Structure
compare convergent and divergent evolution
convergent evolution-different organisms come up with similar adaptations. divergent evolution -a new species buds off from a parent species
converge-come together
diverge-to separate