University of Michigan
University of Michigan: The Concept of the Ecosystem
Lesson looks at the definition of an ecosystem, biogeochemical cycles, and factors responsible for the differences between ecosystems.
National Geographic
National Geographic: Symbiotic Relationships in Marine Ecosystems
For this lesson young scholars analyze videos to make observations about species, populations, and communities of organisms and discuss their symbiotic relationships. Then they create a hypothetical marine ecosystem and describe the...
Other
Grasslands Conservation Council of British Columbia
An overview of the ecosystems in British Columbia.