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19 Cards in this Set
- Front
- Back
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How did Aristotle classify organisms?
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By categories including hair:no hair; four legs : fewer legs; blood : no blood
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How did Linnaeus classify organisms?
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By a system of grouping organisms, like plants, that had similar structures.
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phylogeny
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Evolutionary history of an organism. How it changed over time.
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Eukaryote
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cells with membrane-bound structures
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Prokayrote
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Cells without membrane-bound structures
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Kingdom
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The first and largest category in the classification system.
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What determines if organisms are in the same species?
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If they can reporduce fertile offspring.
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Binomial nomenclature
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A system used by modern scientists to name organisms.
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4 reasons for using scientific names.
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1) They help avoid mistakes.
2) Organisms with similar evolutionary histories are classified together. 3) Scientific names give descriptive information about the species. 4) Scientific names allow information about organisms to be organized easily and efficiently. |
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How is a dichotomous key arranged?
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In steps with two descriptive statements at each step.
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Vertebrate
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Has a back bone
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Invertebrate
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Does not have a backbone
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Endothermic
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Warm-blooded and able to maintain a relatively consistant body temperature.
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Ectothermic
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Cold-blooded. Keep their body temperature in a normal range.
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Homo sapiens
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Scientific name for humans
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7 categories of classifications in order
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Kingdom - Kings
Phylum - Play Class - Chess Order - On Family - Fancy Genus - Gold Species - Sets |
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Which class is the largest (has the most)?
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Insecta
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Where are most new species found?
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Rain forests (tropical areas)
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How do you write a scientific name?
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1) In Latin
2) Genus is first, species second 3) Genus is capitalized; species is not 4) Underlined or in italics |
