Biology
How do immune cells recognize and fight invaders?
Quick fact
The immune system identifies and attacks harmful organisms such as bacteria and viruses.
Why this is interesting
Your body is constantly defending itself against countless microscopic threats you cannot see.
Read the full explanation
Understanding How do immune cells recognize and fight invaders?
The immune system uses specialised cells and molecules to recognise foreign substances and coordinate responses.
A deeper explanation
The immune system is a complex network involving recognition, memory, and adaptation. It can learn from previous infections and respond more effectively in the future.