Figure 1 Coloured scanning electron micrograph of a dust mite. Millions of dust mites inhabit our homes, feeding on shed skin cells. They mainly live in carpets and furniture. They are usually harmless but enzymes in their droppings may cause allergic reactions in susceptible people (×400)
AQA: 3.2.4 Cell recognition and the immune system
Edexcel A: 6 Immunity, infection and forensics
Your organisation does not have access to this article.
Sign up today to give your students the edge they need to achieve their best grades with subject expertise
Subscribe