biological science vs bilaterally symmetrical

biological science is a noun but bilaterally symmetrical is not a noun.

Word	Noun	Adjective	Verb	Adverb
biological science	Yes	No	No	No
bilaterally symmetrical	No	Yes	No	No

biological science (noun)	bilaterally symmetrical (noun)
the science that studies living organisms

biological science (adjective)	bilaterally symmetrical (adjective)
	capable of division into symmetrical halves by only one longitudinal plane passing through the axis
	having identical parts on each side of an axis