Exercises on Lesson XIII.
1. Compare a newly-hatched trout with a seed (bean). How do they resemble, and how do they differ from one another? 2. The trout is protected by its colour markings. Make a list of any other animals you know that are “colour protected.” 3. If you put a fish (trout) into water which has been boiled and allowed to cool, it dies. What are your reasons for this? 4. Make notes, with sketches, of the development of a young trout from the time it is hatched until it requires food.