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23 Cards in this Set
- Front
- Back
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similar evolutionary histories |
what organisms may share that are classified so closely together |
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prokaryote |
cells that lack a nucleus like bacterial cells |
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cell wall |
the outermost structure of most bacterial cells |
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conjugation |
occurs when a bacterium transfers some of its genetic material to another bacterium |
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antibiotics |
chemicals that kill bacteria; penicillin is an example |
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taxonomy |
the scientific study of how living things are classified; biologist find it useful because it gives them information about an organism based on its classification |
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easier to study |
why scientist organize living things into groups |
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binomial nomenclature |
a naming system in which each organism is given a two-part name |
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scientific name |
consists of an organisms genus and species name |
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species' history |
considered today when classifying an organism, but was not considered when Linnaeus classified organisms |
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common ancestor |
what organisms share that also share an evolutionary history |
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rodlike |
a shape that describes some bacterial cells |
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genetic material |
found in the cytoplasm of bacterial cells |
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archaebacteria |
they thrive in extreme environments |
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respiration |
process of breaking down food to release its energy |
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endospores |
form during harsh environmental conditions |
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decomposers |
they return basic chemicals to the environment |
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classification |
biologists use this to organize living things into groups |
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toxins |
some bacteria cause diseases by producing poisons known as... |
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flagellum |
helps the bacterium move |
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ribosomes |
produce proteins |
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levels of classification |
kingdom, phylum, class, order, family, genus, species |
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six kingdoms |
animals, plants, fungi, protist, eubacteria, archaebacteria |
