These are suggested model answers for the activity Questions on the gastric juice videosQuestions 6 - 9 are challenging and students may need some guidance with these questions.1. Dr William Beaumont observed the activity of the stomach and its gastric secretions in the 1830"s.How was this an example of serendipity?Serendipity means an unplanned, fortunate discovery. Dr Beaumont took the opportunity which presented...