Problem: Based on your observations of the circulating network of ponds and streams at the Arboretum and the types of organisms present, what types of comparisons or experiments do you think could be conducted to learn more about the ecology of the aquatic ecosystems in the Arboretum? How does the artificial aquatic environment of the Arboretum system differ from a natural freshwater system, and how could this affect the ecology of the systems and its organisms?