Understanding the Immune System

What is the primary role of the immune system in the body?

• To regulate body temperature

• To provide energy

• To protect the body from harmful invaders

• To digest food

How does the immune system respond when it detects a harmful invader?

• It makes the body sleep

• It sends out special cells to attack the invader

• It increases body temperature

• It ignores the invader

What happens after the immune system defeats an invader?

• It stops working

• It forgets about the invader

• It becomes weaker

• It remembers the invader for faster response next time

Which of the following is NOT a way to keep the immune system strong?

• Watching TV all day

• Eating healthy food

• Getting enough sleep

• Playing outside

Why is it important to maintain a strong immune system?

• To make the body heavier

• To increase the body's temperature

• To ensure the body can effectively fight off invaders

• To make the body taller