sponges; means animal that contains holes; are sessile feeders (stuck to the ground, eating what comes near them); body symmetry: asymetric
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Cnidaria
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jellyfish, corals, sea anemones, hydras
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notochord
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a flexible rod that supports a chordate's back
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cell wall composition and rRNA type
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differences between archaea and bacteria
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Carolus Linnaeus
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father of taxonomy
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Phylogeny
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evolutionary relationships based on phenotypic similarities and differences
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Eukarya, Animalia, Chordata, Mammalia, Primates, Hominidae, Homo, sapiens
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human taxonomy
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Phylum Chordata
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has the notochord and a closed circulatory system
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Phylum Nematoda
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roundworms with complete digestive system
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Protista
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kingdom composed of eukaryotes that are not classified as plants, animals, or fungi (under the eukarya domain)
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Plantae
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kingdom of multicellular photosynthetic autotrophs that have cell walls containing cellulose
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Eubacteria
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under the bacteria domain (true bacteria) (asexual reproduction)
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Archaebacteria
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under the archaea domain (asexual reproduction)
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Fungi
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a kingdom made up of nongreen, eukaryotic organisms that have no means of movement, reproduce by using spores, and get food by breaking down substances in their surroundings and absorbing the nutrients (under the eukarya domain)
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eukaryote
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a cell that contains a nucleus and membrane bound organelles
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Archaebacteria, Eubacteria, Protista, Fungi, Plantae, Animalia
how is the hierarchical classification of taxonomy arranged?
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cell type, nutrient acquisition, reproduction
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guidelines for placing species in a specific kingdom
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Carl Woese
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developed the three domain system
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Phylum Echinodermata
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made up of marine animals that are invertebrates and can regenerate limbs
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Analogous
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structures with similarity in function and sometimes appearance, with no evolutionary connection
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Phylum Arthropoda
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has jointed appendages and exoskeleton (body extensions that give them a wide range of controlled motion); complete digestive system but incomplete circulatory system (hemolymph)
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Animalia
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kingdom of multicellular eukaryotic heterotrophs whose cells do not have cell walls
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Platyhelminthes
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planarian, flukes, tapeworms
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Phylum Mollusca
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all have a soft body sometimes protected by a hard, calciferous shell
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Nematoda
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hookworms, pinworms, ascaris
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Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
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hierarchical classification of taxonomy
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Phylum Annelida
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segmented worms with complete digestive system and organs