Easy to memorise, difficult to understand. This simple animation is the highlights edition of the specific immune response, helping you to get the BIG PICTURE before you fill in the details for A level biology. Key stages covered are:
1. What the immune response has to do
2. Antigen presentation
3. Clonal selection
4. Clonal expansion
5. Role of the immune cells
![](https://i.ytimg.com/vi/ASpeKaA6Xtw/maxresdefault.jpg)