Microbes

• What are the three domains of life?

  Archaea, bacteria, and eukaryota
• What types of organisms can cause infections?

  Bacteria, viruses, protists, and fungi
• How do bacteria reproduce in the body?

  They reproduce rapidly
• What do bacteria release that can be harmful?

  Toxins
• How do viruses reproduce in the body?

  They reproduce in body cells
• What is a consequence of viral reproduction in body cells?

  It causes damage to the cells
• What is the role of skin in body defenses?


  It acts as a barrier to pathogens
• What are the key differences between bacteria and viruses in terms of reproduction and effects on the body?


  • Bacteria:
  • Reproduce rapidly in the body
  • Can release toxins
  • Viruses:
  • Reproduce in body cells
  • Cause damage to cells
• What are the main types of pathogens and their characteristics?


  • Bacteria: Cause infections, reproduce rapidly, release toxins
  • Viruses: Cause infections, reproduce in cells, damage cells
  • Protists: Can cause infections
  • Fungi: Can cause infections