A mosquito bites a person who has malaria, then bites a healthy person. The mosquito does not become ill. Which term best describes the role of the mosquito?
A vector, because it transfers the protist from person to person
A pathogen, because it makes people ill when it bites them
A predator, because it feeds on the blood of a larger animal
A parasite, because it lives inside the body of an infected person
176 exam-style questions on AQA GCSE Biology 3.1 Communicable diseases, covering 3.1.1 Communicable (infectious) diseases, 3.1.2 Viral diseases, 3.1.3 Bacterial diseases, 3.1.4 Fungal diseases, 3.1.5 Protist diseases, 3.1.6 Human defence systems, 3.1.7 Vaccination, 3.1.8 Antibiotics and painkillers, and 3.1.9 Discovery and development of drugs. Each one has a worked solution and a mark scheme showing where the marks go.