Assertion: virus | /r/HasProperty | an ultramicroscopic
Facets:
value: in more complex types
type: OTHER
Source sentences:
text: A virus is an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope.