Microcheck 101

Taxonomy consists of three interrelated areas: identification, classification, and nomenclature. In clinical laboratories, identifying the genus and species of an organism is more important than understanding its evolutionary relationship to other organisms.

■ Why is it generally easier to determine the cause of pneumonia than it is to determine the cause of a wound infection?

■ Why do microbiologists prefer the three-domain system of classification?

■ Some biologists have been reluctant to accept the three-domain system. Why might this be?

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Organic Gardeners Composting

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