List and discuss some bacterial survival methods. Introduce the endospore and what it consists of. Define the dormancy which can occur as well as what will occur when the unfavorable conditions become favorable again. Discuss gene mutation as a survival method, with antibiotic resistance occurring to the bacteria. Briefly discuss nitrogen fixation and the conversion of nitrogen gas into usable nitrogen compounds. Define and discuss normal flora in the digestive system and its importance in digestion. Introduce the importance of some bacteria in food production, like cheese, yogurt, pickles, and chocolate. Introduce that some bacteria are used to. produce antibiotics.