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31 Cards in this Set
- Front
- Back
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Scientists have named how many species?
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1.5 million
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How many species?
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10 million
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Organisms produce:
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More offspring that can survive. Some cant reproduce
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Natutal selection is:
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Organisms that are good for their enviroment and survive and reproduce survive but the oppisites die off
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Taxonomy
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Branch of bio that classifies organisms and assigns them a name
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Aristotle did what?
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First classified organisms into plants and animals
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Aristotle didvided animals into:
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Land water air dwellers
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Aristotle divided plants into
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Herbs shrubs trees
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Who invented the new system of classification? (after Aristotle)
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Carolus linnaeus
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What was linnaeus's system based on?
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Structural similarities
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What was linaeuss system?
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Binomial nomenclature-
The system of assigning a sci name that has two parts |
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Linaeus divided organisms into
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Kingdoms- plants and animals
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Kingdoms are divided into
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Phylums for animals
Divisions for plants |
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7 levels of classification:
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(domain)
Kingdom Phylum Class Order Family Genus Species |
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Sci names were:
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Latin, 2 words
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Genus name is always
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Capalized, italics/underline
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Phylogeny:
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Tbe evolutionary history of.an organism
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Phylogenetic tree:
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Evolutionary relationships thought to exist among diffetent groups of organisms
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Common ancestor on the tree:
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Protists
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Morphology:
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ClassificAtion based on the structures possessed by the organism
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Homologous structures
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Have samr structure, diffetent functions
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Analogous structure:
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Similar function but not in structure
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Vestigial structure
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A structure that is reduced in size and seems to be left over from a previous ancestor
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Cladistics:
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Kinda new method of classifying organisms
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Cladistics use:
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Shared derived characteristics to make evolutionary relationships
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Derived characteristic:
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Evolved only within one group
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Cladogram
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Idk shows cladistics
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Domain Bacteria contains
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Kingdom eubacteria
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Domain archea contains
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Kingdom archaebacteria
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Domain archea contains
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Kingdom archaebacteria
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Domain eukarya contains
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Kingdoms Protists, plantae, fungi, animalia
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