What affect, if any, does the frequency have on the amplitude of a wave?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Where can a dna be found in a prokaryotic cell

How did the club fungi get its name? a. it is named for the club-shaped seeds it produces. b. it is named for the way individual species grow together in small groups called “clubs.” c. it is named for the club-shaped area where it produces spores. d. it is named for the club-like mechanism it uses to kill its prey.