ventral vs biological science

ventral is not a noun while biological science is a noun.

Word	Noun	Adjective	Verb	Adverb
ventral	No	Yes	No	No
biological science	Yes	No	No	No

ventral (noun)	biological science (noun)
	the science that studies living organisms

ventral (adjective)	biological science (adjective)
toward or on or near the belly (front of a primate or lower surface of a lower animal)
nearest to or facing toward the axis of an organ or organism