In this program students are introduced to the study of ecology. It discusses the role which producers, consumers, and decomposers play in ecosystems and the exchange of energy between them. Other terminology includes: environment, interconnected, community, natural communities, habitats, energy dynamics, energy laws, stability and biodiversity.

Originally released by Visual Learning, 2003. Streaming video file encoded with permission for digital streaming by Infobase on April 18, 2015. Teacher's guide available under Additional info tag.

Ecology (2:40); --Ecosystems (1:26); -- Abiotic Ecosystem Components (2:36); -- Biotic Ecosystem Components (2:47); -- Roles in Ecosystems (1:54); -- Energy in Ecosystems (1:02); -- Biodiversity (1:48); -- Summing Up (1:02); -- Video Quiz (2:49); -- Credits: Ecosystem Dynamics (0:51);.