Chapter 21 Resource: Ecology

Name Date ClassDirected Reading forContent MasterySection 3 ■Energy Through theEcosystemCopyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc.Directions: Use the following clues to complete the puzzle.Down1. organisms that eat dead organisms andwaste material from other organismsAcross2. an organism in a food chain that makes itsown food3. the organisms in a food chain that eatother organisms in the same food chainDirections: Underline the term in parentheses that correctly completes each sentence.4. Energy moves through an ecosystem in the form of (food, decomposers, a chain).5. A rabbit is a (decomposer, consumer, producer).6. Plants make their own food through (decomposition, photosynthesis, the soil).7. (No, Some, All) organisms in an ecosystem eat other organisms in the sameecosystem.8. A food chain shows (none, some, all) of the possible feeding relationships in anecosystem.321Meeting Individual NeedsEcology 17