Defence and Diseases

What is the main function of the immune system?

• To protect the body from harmful pathogens

• To help in digestion

• To make the body temperature stable

• To regulate sleep patterns

Name a way that pathogens (parasites) can spread

• Unsanitary conditions
• Mosquitos

• All choices

• Not washing hands

Explain the difference between viral and bacterial infections.

• Viral infections are caused by viruses, while bacterial infections are caused by bacteria.

• Viral infections are always more severe than bacterial infections.

• Viral infections are caused by bacteria, while bacterial infections are caused by viruses.

• Viral infections are treated with antibiotics, while bacterial infections are treated with antiviral medications.

Why is it important to have a balanced immune system?

• To weaken the body's defenses

• To increase the risk of infections

• To effectively fight off infections, diseases, and maintain overall health.

• To make people sick

What is a parasite?

• A parasite is an organism that produces its food through photosynthesis.

• A parasite is an organism that lives on or in an organism

• A parasite is an organism that only feeds on dead matter.

Choose from these options: Which of these precautions help prevent the spread of bacteria.

• Washing hands frequently

• Sharing drinks with others
• Eating after touching something dirty

• Not properly washing your hands after handling meat

Five points on this question so answer carefully: What is 3 of the body parts that protect the

body from parasites (infection)

• immune system

• skin and mucus

• hair and nails
• lungs and heart
• stomach acid

Answer explanation

The immune system is not a body part