The pancreas makes hormones that control blood glucose, and enzymes that digest food. Which statement about the pancreas is correct?
It is an organ, and it is part of the digestive system only
It is an organ, and it is part of more than one organ system
It is a tissue, because all of its cells release useful substances
It is an organ system, because it carries out two different jobs
19 exam-style questions on AQA GCSE Biology 2.1 Principles of organisation, covering 2.1 Principles of organisation. Each one has a worked solution and a mark scheme showing where the marks go.