What is the skeletons job?

What does it mean when a cat stares at the wall? What do chikadees eat? Your dog is shaking and lethargic just all of the sudden why? What does a geoduck look like? What is echolcation? What is a product of the earth that people use to meet their needs? Species make up what? How does the weather in Hawaii impact on the environment and plant and animal life? How can you stop a hamster using the exercise wheel as a toilet? What are the aligator enemies? What do you feed and injured young grosbeak? What are harmfull animals? If an overlap develops between the ranges of two closely related species and if the species occupy the same niche in the zone of overlap what will probably happen in the zone of overlap? How can I effectively trim thick cat claws? What lives on the plains? Why was migration important? Can bettas coexist with snails? Is daphnia endothermic or ectothermic? Why does my cat touch my face when I'm sleeping? How much food does my puppy need on a daily basis?