bioscience vs natural science

bioscience and natural science both are nouns.

Word	Noun	Adjective	Verb	Adverb
bioscience	Yes	No	No	No
natural science	Yes	No	No	No

As nouns, natural science is a hypernym of bioscience; that is, natural science is a word with a broader meaning than bioscience:

bioscience: any of the branches of natural science dealing with the structure and behavior of living organisms
natural science: the sciences involved in the study of the physical world and its phenomena

bioscience (noun)	natural science (noun)
any of the branches of natural science dealing with the structure and behavior of living organisms	the sciences involved in the study of the physical world and its phenomena