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34 Cards in this Set
- Front
- Back
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binomial nomenclature
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a system of naming organisms that uses the genus name and a species identifier
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blastopore
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a depression formed when cells of the blastula move inward
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blastula
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a hollow ball of cells formed when a zygote undergoes repeated cycles of cell division
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cladistics
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new system of phylogenic classification, uses features of organisms to establish evolutionary relationships
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cladogram
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ancestry diagrams made by cladistic annalysis
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class
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subset of phylum
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derived character
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a feature that evolved onlky within the froup under consideration
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division
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in the plant kingdom
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domain
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in the three domain system of classification, one of the three broad groups that all living things fall into on a basis of rRNA annalysis
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domain archea
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known as Archaebacteria
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domain bacteria
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known as eubacteria
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domain eukarya
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composed of all eukaryotes, have nuclei with chromosomes
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echinoderm
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blastopore becomes the posterior end of teh digestive system
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eubacteria
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unicellular prokaryotes, bacteria that are harmful to humans. They use O2 and reporduce by binary fission
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family
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a group related to genera
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genus
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a group of similar species
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kingdom
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largest category, plant and animal
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kingdom animalia
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eukaryotic multicellular heterotrophic organisms. Have symmetrical body organization and reporduce through meiosis and sexual reporduction
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kingdom Archaebacteria
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unicellular prokaryotes with cell membranes and scientific properties. Live in hot springs and salty lakes
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kingdom eubacteria
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unicellular prokaryotes, bacteria that are harmful to humans. used o2 reproduce to binary fission
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kingdom fungi
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heterotrophic unicellular and multicellular organisms
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kingdom plantae
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multicellular plants, use photosynthesis as E. lilve on land
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kingdom protista
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variety of eukaryotes, single celled, some multi. celled. Lack specialized tissue
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order
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subset of class
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phylogenic tree
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a family tree that shows the evolutionary relationships thought to exist on any organism
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phylogeny
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evolutionary history of an organism that taxonimists use to classify
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phylum
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subset within a kingdom
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species
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smallest grouping, single organism type
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species identifier
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a discriptive word
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species name
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scientific name
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subspecies
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varieties of animalspecies that occur in different geographical areas
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systematics
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classification of organisms should reflect their phylogeny. organizes the tremendous diversity among living things
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taxonomy
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the science of grouping organisms according to their presumed evolutionary relationships
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variety
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subsets of species
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