The document discusses ecosystems and food webs. It defines producers as organisms that make their own food, mostly plants. Consumers must find their own food and include all animals. Decomposers like worms and fungi break down dead and decaying matter. Herbivores eat only plants, carnivores eat only meat, and omnivores eat both plants and meat. A food chain shows the transfer of energy from producers to consumers, with the sun as the original energy source. A food web connects overlapping food chains and shows how all animals in a community obtain food. An energy pyramid displays the decreasing amount of energy at higher levels of the food web.

1. CHAPTER 3 Lesson 3: Ecosystem Relationships I. How do organisms depend on one another? Producer - makes its own food 1. Most all plants Consumers - must find its own food 1. All animals Decomposers – organisms that break down dead and decaying matter 1. worms, fungi

2. II. How can we classify all consumers? A. Herbivore: Eats only plants, fruits, seeds Deer, squirrel, prairie dogs B. Carnivore: Eats meat only Snake, owl, wolf, shark C. Omnivore: Predators and their prey Eat both plants and meat Humans, bears,

3. III. What is a food chain? A. A path by which energy passes from one living thing to another 2. Producer- plant 1. Energy source- sun 3. Consumer- herbivore- mouse 4.Consumer- carnivore- wolf 5. Decomposer – break down dead wolf into soil for plant 1 2 3. 4 5 Food Chain Game Food Chain Game

4. IV. What is a food web? Food chains that overlap Shows how all the animals in a community get their food

5. What is an energy pyramid? A. Energy pyramid- shows the amount of energy at each level of a food web