physiology vs adaptation

physiology and adaptation both are nouns.

Word	Noun	Adjective	Verb	Adverb
physiology	Yes	No	No	No
adaptation	Yes	No	No	No

physiology (noun)	adaptation (noun)
processes and functions of an organism	(physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light)
the branch of the biological sciences dealing with the functioning of organisms	a written work (as a novel) that has been recast in a new form
	the process of adapting to something (such as environmental conditions)