comparative anatomy vs anatomy

comparative anatomy and anatomy both are nouns.

Word	Noun	Adjective	Verb	Adverb
comparative anatomy	Yes	No	No	No
anatomy	Yes	No	No	No

As nouns, anatomy is a hypernym of comparative anatomy; that is, anatomy is a word with a broader meaning than comparative anatomy:

comparative anatomy: the study of anatomical features of animals of different species
anatomy: the branch of morphology that deals with the structure of animals

Other hypernyms of comparative anatomy include general anatomy.

comparative anatomy (noun)	anatomy (noun)
the study of anatomical features of animals of different species	a detailed analysis
	alternative names for the body of a human being
	the branch of morphology that deals with the structure of animals