Karen has a very busy schedule, and she is often not able to study until late at night. karen takes medicine that she doesn't need because it her to stay awake while studying. this is an example of? a.) medicine abuse b.) over-the-counter medicine c.) medicine misuse d.) prescription medicine

Aresearcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (tmv). the cell contents are left in a covered test tube overnight. the next day this mixture is sprayed on tobacco plants. we expect that the plants would ) develop some but not all of the symptoms of the tmv infectionb) develop the typical symptoms of tmv infectionc) not show any disease symptomsd) become infected, but the sap from these plants would be unable to infect other plants