A clinic records four conditions: chickenpox, coronary heart disease, pneumonia and human papillomavirus (HPV) infection.
Which condition in the list is not caused by a pathogen?
Pneumonia
Human papillomavirus (HPV) infection
Coronary heart disease
Chickenpox
304 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.