Animals Without Backbones 1 Useful Animals Animals and their Habitats Animals Hatched from Eggs and Born Alive The End of the World | Animals Here, Animals There -- Relatively Challenging (2-dots) Safety Measures in Dealing with Animals The End of the World | Animals Here, Animals There -- Relatively Easy (1-dot) Classifying Animals According to Body Parts and Use Body Structures Help Animals Adapt and Survive in their Particular Habitat