Microbes

• What are microbes?

  Microbes are tiny organisms seen by the naked eye.
• Where are microbes commonly found?

  Microbes are found almost everywhere on Earth.
• How can microbes be useful to humans?

  Microbes can be both useful and harmful to humans.
• What types of organisms can microbes be?

  Microbes can be bacteria, viruses, or fungi.
• What is the significance of unicellular organisms?

  Unicellular organisms mean they exist as a single cell.
• What can microbes cause in humans?

  Microbes can cause diseases in humans.
• How do doctors diagnose diseases caused by microbes?

  Doctors observe symptoms to diagnose diseases.
• How can microbes spread diseases?

  Microbes can spread through various means.
• What are pathogens?

  Pathogens are microbes that cause diseases.
• What are some ways microbes can enter the body?

  Microbes can enter through air, contact, or food.
• What role do tears play in preventing infections?

  Tears contain enzymes that help prevent infections.
• What is the pH level of stomach acid?

  The pH level of stomach acid is around 1.
• How does stomach acid affect microbes?

  Stomach acid destroys many microbes.
• How does the respiratory system help prevent infections?

  The respiratory system traps microbes with mucus and hairs.
• What is the role of the immune system in fighting infections?

  The immune system helps to fight off infections.
• What can contaminated food and drink cause?

  Contaminated food and drink can spread diseases.
• How can food and drink contamination be prevented?

  Proper hygiene can prevent food contamination.