biology vs bioscience

biology and bioscience both are nouns.

Word	Noun	Adjective	Verb	Adverb
biology	Yes	No	No	No
bioscience	Yes	No	No	No

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

biology: the science that studies living organisms
bioscience: any of the branches of natural science dealing with the structure and behavior of living organisms

Other hypernyms of biology include life science.

biology (noun)	bioscience (noun)
the science that studies living organisms	any of the branches of natural science dealing with the structure and behavior of living organisms
all the plant and animal life of a particular region
characteristic life processes and phenomena of living organisms