You should be able to label and identify basic structure (petals, sepal, anther, filaments, etc). And what else do you study about flowers? I really forgot, but thats what they mean.
why antibiotics kill bacteria and not virus
because antibiotics target cell walls of bacteria and weakens it, the bacterial cell burst as a result of osmotic effect (cell wall falls apart, water diffuse in, cell bursts). Viruses do not have cell walls so they are not affected by antibiotics.
Anything else?
