saprobic vs biology

saprobic is not a noun while biology is a noun.

Word	Noun	Adjective	Verb	Adverb
saprobic	No	Yes	No	No
biology	Yes	No	No	No

saprobic (noun)	biology (noun)
	the science that studies living organisms
	all the plant and animal life of a particular region
	characteristic life processes and phenomena of living organisms

saprobic (adjective)	biology (adjective)
living in or being an environment rich in organic matter but lacking oxygen