AQA The immune system in defence against disease

immune system The immune system is made up of non-specialised defences such as your skin and strong acid stomach juices However it also

Anything that can trigger this immune response is called an antigen An antigen can be a microbe such as a virus, or even a part of a microbe Tissues or cells system789 The immune system is made up of cells and organs that protect your body from outside invaders such as bacteria, viruses, fungi, and parasites (