Packed with visual aids and multiple learning opportunities, an engaging exercise challenges individuals as they explore the role of producers, consumers, and decomposers. After discussing differences between food chains, food...

From tiny organisms to entire biomes, young scientists examine the interdependent relationships tying all living and non-living things together with this collection of ecology resources.

Explains the characteristics of food chains and food web; the different levels of producers, consumers, and decomposers; and the differences between food chains and food webs. Includes charts and a Venn diagram comparing the two.

Find answers to your questions about habitats, producers, consumers, and food chains. Glossary, image bank, suggested activities, and quiz included.

Article describes the importance of green plants and the ideal conditions they need to produce the food and oxygen people need to live.

Read about the different predators, consumers, and producers that make up an ocean food chain.

Explains the roles of consumers, producers, and detrivores or decomposers and how energy flows through the different levels of the energy pyramid of a tropical rainforest.

Review the flow of energy through ecosystems with this study guide.

After reviewing the roles of consumers, producers and decomposers, you'll create your own food chains using pictures from magazines. The site also has 18 questions to see if you can identify the ecologic role played by various organisms.

Describes how a food chain works in a desert and how the Mojave desert food chain works in particular.

Describes the characteristics of a tundra biome, how a tundra food chain compares to a tropical food chain, and what the different trophic levels look like.

Explains the characteristics of tropical and temperate rainforests and what rainforest food webs look like.

How would you define an ecosystem? Check out this educational resource to learn more about the living and nonliving parts of different ecosystems.

Detailed explanation of the processes by which energy flows through an ecosystem. Scroll down and open Section 3.