Question
4. Erick told his mother that he learned that all bacteria are actually good, so he doesn't have to wash his
hands or worry about eating food off the floor. Is he right? Is there such a thing as good bacteria? Is
there such a thing as bad bacteria? Please provide examples for your answer.
Answer
No, Erick is not right. There are both good and bad bacteria. Good bacteria can help with digestion and provide essential nutrients, while bad bacteria can cause illnesses and infections. Examples of good bacteria include Lactobacillus and Bifidobacterium, while examples of bad bacteria include Salmonella and E. coli.