Ciprofloxacin (cipro) is an antibiotic that inhibits bacterial dna replication. it enters cells by diffusion. many cells resist the action of cipro by expressing a membrane protein that pumps the antibiotic out the cell. what does the cipro-resistance protein have in common with porins?

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.