1. Amplitude of Tolerance is the Range of Environmental Conditions that a Species Can Withstand (p 38 # 2) A changing of conditions can cause a species to disappear

2. Everything Living and Nonliving is related to or connected to Everything Else (p 46 # 3) A introduction of a plant can cause crocodiles to kill humans

3. Predator- Prey Relationships (P 68 # 23) The killing of Gray Wolves in Yellowstone can cause a decrease in Elk

4. The need to Preserve Wilderness is necessary because of man’s basic dependence on the natural world and his need for wilderness, natural areas and breeding populations as life preserves and genetic storehouses (P 96 # 5) Areas like the Wildlife Sanctuary are necessary to maintain populations for the future

5. Conservation is not a luxury or an optional practice but is one of the essential for survival (P 98 # 6) We need to save species to save ourselves