Why should you be careful when taking antibiotic treatments? a. improper use can lead to bacterial resistance. b. their use is known to cause many side effects. c. they may also kill viruses in your body. d. a placebo effect may be present from their use.

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .