physiology vs nutrition

physiology and nutrition both are nouns.

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

physiology (noun)	nutrition (noun)
processes and functions of an organism	the scientific study of food and drink (especially in humans)
the branch of the biological sciences dealing with the functioning of organisms	a source of materials to nourish the body
	(physiology) the organic process of nourishing or being nourished; the processes by which an organism assimilates food and uses it for growth and maintenance