dysgenics vs life science

dysgenics and life science both are nouns.

Word	Noun	Adjective	Verb	Adverb
dysgenics	Yes	No	No	No
life science	Yes	No	No	No

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

dysgenics: the study of the operation of factors causing degeneration in the type of offspring produced
life science: any of the branches of natural science dealing with the structure and behavior of living organisms

Other hypernyms of dysgenics include bioscience.

dysgenics (noun)	life science (noun)
the study of the operation of factors causing degeneration in the type of offspring produced	any of the branches of natural science dealing with the structure and behavior of living organisms