Chapter 21 Resource: Ecology

Name Date ClassNote-taking Worksheet (continued)2. ___________________ is the act of one organism feeding on another.a. A bird of prey, such as a falcon, is an example of a ___________________.b. A falcon’s ___________________ is the organism it eats.3. When the African tickbird eats insects off a zebra’s skin, both organisms in the relationship___________________.4. A bird that builds its nest in a tree ___________________, but the tree is neither harmednor helped.5. Insects biting a zebra’s skin ___________________ the zebra but benefit themselves.D. Each type of organism has a different ___________________ to play in an ecosystem.1. The role of an organism in an ecosystem is called its ___________________.2. The place where an organism lives out its life is called its ___________________.Section 3 Energy Through the EcosystemA. Energy moves through an ecosystem in the form of ___________________.Meeting Individual Needs1. An organism that makes its own food, such as a plant, is called a ___________________.2. ___________________, like grasshoppers, eat other organisms.Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc.3. ___________________, such as bacteria and fungi, use dead organisms and the wastematerial of other organisms for food.B. A food chain models how ___________________ from food passes from one organism toanother.1. In an ecosystem, food chains often ___________________.2. A food web is a series of overlapping food chains that shows all the possible___________________ relationships in an ecosystem.C. In an ecosystem, matter ___________________ through food chains.1. The amount of ___________________ on Earth never changes.2. Matter in ecosystems is ___________________.Ecology 31