alkali bee vs bee

alkali bee and bee both are nouns.

Word	Noun	Adjective	Verb	Adverb
alkali bee	Yes	No	No	No
bee	Yes	No	No	No

As nouns, bee is a hypernym of alkali bee; that is, bee is a word with a broader meaning than alkali bee:

alkali bee: a common solitary bee important for pollinating alfalfa in the western United States
bee: any of numerous hairy-bodied insects including social and solitary species

alkali bee (noun)	bee (noun)
a common solitary bee important for pollinating alfalfa in the western United States	any of numerous hairy-bodied insects including social and solitary species
	a social gathering to carry out some communal task or to hold competitions