Encyclopedia > Wikipedia:Dewey Decimal System 57

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Wikipedia:Dewey Decimal System/57

Dewey Decimal System > 5 Natural Sciences and Mathematics > 57 Life sciences

571 Life sciences
572 Human races
573 Physical anthropology
574 Biology
575 Evolution & genetics
576 Microbiology
577 General nature of life
578 Microscopy in biology[?]
579 Collection and preservation



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Urethra

... bladder to the outside of the body. The urethra has an excretory function in both sexes, to pass urine to the outside, and also a reproductive function in the male, ...

 
 
 
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