zoological science vs vertebrate

zoological science and vertebrate both are nouns.

Word	Noun	Adjective	Verb	Adverb
zoological science	Yes	No	No	No
vertebrate	Yes	Yes	No	No

zoological science (noun)	vertebrate (noun)
the branch of biology that studies animals	animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium

zoological science (adjective)	vertebrate (adjective)
	having a backbone or spinal column