Parasites
Invertebrate organisms that live on or in another organism (the host), and benefit at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically.
Year introduced: PARASITICIDES was heading 1963-1966
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Subheadings:
Tree Number(s): B01.050.500.714
MeSH Unique ID: D010271
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