During a short study, a volunteer is positioned with their feet higher than their head after swallowing a mouthful of food.
Name, in order, the parts of the alimentary canal that the food passes through after it leaves the stomach, until it leaves the body.
Explain how food can still move along the alimentary canal while the volunteer is in this position.
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.