| Health / Medical Topics |
Specific Pathogen Free Organism
Animals or humans raised in the absence of a particular disease-causing virus or other microorganism. Less frequently plants are cultivated pathogen-free. (NCI Thesaurus)
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An immune cell such as a T or B lymphocyte that responds to a single, specific antigen.
The density (mass per unit volume) of any material divided by that of water at a standard temperature.
A taxonomic category below species group.
The taxonomic ranking including both species and subspecies.
A coded value specifying one of the basic units of biological classification and taxonomic rank that specifies a group of organisms that…
A group of organisms that differ from all other groups of organisms and that are capable of breeding and producing fertile…
