Answers edited by Robert M.

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• What do humans use bacteria for?
  
• Question #1465c
  
• What structure is an adaptation that helps certain bacteria ward off attack by white blood cells?
  
• What are the differences between a lytic infection and a lysogenic infection?
  
• How would you explain an ethyl group?
  
• What is the difference between active and passive immunity?
  
• Why is binomial nomenclature useful?
  
• Why does the body need carbohydrates?
  
• What are the functions of a cell membrane?
  
• What is the genetic material in eukaryotes wrapped by?
  
• What is the organelle where energy is made in animals?
  
• Why is agar used to grow bacteria?
  
• What happens during meiosis that doesn't occur during mitosis?
  
• Why does vaccination provide long-lasting protection against a disease, while gamma globulin (IgG) provides only short-term protection?