Access restricted
Access to study materials is restricted. You are not logged in to Opiq.
A valid license for package „Opiq+ For Teacher” or „Opiq+ Home” is required to use the kit. Click the link with the package name to learn more about the package and order a license.
If you have a valid license, log in to view the chapter.
Chapter topics:
- Ecosystems
- Introduction
- What is an ecosystem?
- The food chain
- The food web
- Substances circulate in the ecosystem
- Energy flows in the ecosystem
- Ecological efficiency
- Ecological pyramids
- Terminology
- Summary
A valid license for package „Opiq+ For Teacher” or „Opiq+ Home” is required to use the kit. Click the link with the package name to learn more about the package and order a license.
If you have a valid license, log in to view the chapter.