vertebrate vs zoological science

vertebrate and zoological science both are nouns.

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

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

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