biological science vs form genus

biological science and form genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
biological science	Yes	No	No	No
form genus	Yes	No	No	No

biological science (noun)	form genus (noun)
the science that studies living organisms	an artificial taxonomic category established on the basis of morphological resemblance for organisms of obscure true relationships especially fossil forms
	(biology) an artificial taxonomic category for organisms of which the true relationships are obscure; forms the first half of a species' unique Latinate name