What can be said about prokaryotes and eukaroytes? a. both of these cell types contain genetic material. b. prokaryotes always have a nucleus, but eukaryotes don't. c. prokaryotes don't grow or respond to their environment, but eukaryotes do. d. both of these cell types contain a nucleus.

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.