Each learning module looks at a different body system. Within a module there are screens with information and questions. At the end of the module there is a quiz

Most questions found amongst the learning screens allow you to have several guesses at the right answer. If you then go back to this question, you can answer it again.

Questions in the quiz only allow you one guess at the answer. If you get it wrong, you will be shown the correct answer. If you go back to these questions, they will show the answer that you gave when you first answered them.

Remember, when you see this MORE -> button, click on it to see another panel of text.