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Unit 1

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
geologic record   divided into Archaean, the Proterozoic, and the Phanerozoic eons.  
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cambrian explosion   refers to the sudden appearance of fossils resembling modern animal phyla in the Cambrian period (535 to 525 million years ago)  
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phylogeny   the evolutionary history of a species or group of related species  
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the discipline of systematics   classifies organisms and determines their evolutionary relationships  
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taxonomy   the ordered division and naming of organisms  
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binomial   two-part scientific name of a species  
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the first taxonomic group   domain  
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the second taxonomic group   kingdom  
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the third taxonomic group   phylum  
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the fourth taxonomic group   class  
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the fifth taxonomic group   order  
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the sixth taxonomic group   family  
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the seventh taxonomic group   genus  
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the eighth taxonomic group   species  
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taxon   a taxonomic unit at any level of hierarchy  
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excavata   a supergroup; recently proposed clade that has emerged from morphological studies of the cytoskeleton  
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diplomonads   a part of the excavate supergroup; have modified mitochondria called mitosomes, obtain energy from anaerobic biochemical pathways  
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mitosomes   lack functional electron transport chains and cannot use oxygen to ex  
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Created by: danat214
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