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This Concept Map, created with IHMC CmapTools, has information related to: max amendolara 7783-5 bird eval, light body weights help to fly, edotherms means warm blooded animals, rapid digestive systems provide for light body weights, birds have rapid digestive systems, birds have hollow bones, rapid digestive systems is necesarry due to high metabolism, warm blooded animals produce heat, energy much is required to fly, birds have feathers, birds lay eggs, birds have two feet, heat from food, birds have two wings, high metabolism provides energy, feathers help to fly, birds require food, birds have beaks, birds are edotherms, hollow bones provide for light body weights, birds some do fly