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Descriptor in English: Hydra
Descriptor in Spanish: Hydra
Descriptor in Portuguese: Hydra
Descriptor in French: Hydra
Entry term(s): Hydras
Tree number(s): B01.050.500.308.485.400
Scope note: A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals.
Allowable Qualifiers: AH anatomy & histology
CH chemistry
CL classification
CY cytology
DE drug effects
EM embryology
EN enzymology
GD growth & development
GE genetics
IM immunology
ME metabolism
MI microbiology
PH physiology
PS parasitology
PY pathogenicity
RE radiation effects
UL ultrastructure
VI virology
History Note: 72
DeCS UI: 6981
Descriptor UI: D006829
Date Established: 1972/01/01
Date of Entry: 1999/01/01
Revision Date: 2009/07/06
Hydra - Preferred
Concept UI M0010674
Scope note A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals.
Preferred term Hydra
Entry term(s) Hydras



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