Antibiotic resistance in bacteria is a serious problem facing society today. There are many reasons for this problem, one of which is an overuse of antibiotics. Through evolution, tougher bacteria that cannot be killed by antibiotics are surviving and reproducing. This is not necessarily a problem in people with strong immune systems, but in hospitals where many people have compromised immune systems, harboring such bacteria can kill a person. In this laboratory investigation, you will be designing an experiment to test the concept of antibiotic resistance using two strains of bacteria called E. coli.