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.

Learn about all the different levels of ecosystems, from the living things under a rock, up to a rainforest biome. Explains the levels of organization within an ecosystem, the different types of biomes, food chains and trophic levels,...

Take a close-up look at the world of lakes and ponds and discover what lives and grows there through pictures, news, descriptions, and external links.

Investigate the climate zones and biomes of the world.

The University of California Museum of Paleontology hosts this site devoted to the study of the earth's biomes, which are the world's major communities, classified according to the predominant vegetation and adaptations of organisms to...

A good review of basic terminology followed by descriptions and pictures of the North American biomes.

This site provides information on the different biomes of the Earth. There are links to related information and other topics.

This comprehensive study guide covers the main terms and concepts needed for a unit on biomes.

An engaging natural history of sand dunes. From beaches to deserts you will learn about the formation and ecology of these ecosystems.

Students examine the Biology topic of the biosphere. The tutorial includes definitions, examples, and pictures on biomes and watersheds.

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

Are you looking for a good starting place on where to research biomes? This site would be a great place to start as it contains lots of information about all the different biomes on Earth.

Describes twelve kinds of ecosystems.

Describes the characteristics of the marine biome, the plants and animals that live in each of the four ocean zones, coral reefs and estuaries, the climate of the marine biome, and the marine food web.

An introduction to biomes and how agriculture is considered in studying large ecosystems of the world. Text is well written and easy to follow with links, charts, and pictures.

study the Biology concept of ecosystems. The marine ecosystem tutorial comprises of definitions, pictures, and examples of an assortment of ocean benthic biomes.

Students investigate the Biology topic of ecosystems. The marine ecosystem tutorial consists of definitions, pictures, and examples of different ocean-benthic biomes.

Gives short descriptions of the many different types of biomes found on land all over the world. (Updated: February 22, 2013)

Ecosystems contain two kinds of commodities: matter (nutrients) and energy. Nutrients cycle through the ecosystem, available for repeated use by organisms. These cycles of use and reuse are called biogeochemical cycles. Energy instead is...

Describes the geography of this ecoregion, its biodiversity, its excellent conservation status, the parks and wilderness areas within its boundaries, potential threats, and organizations working to ensure its protection. (Updated August...

This site from combat fishing describes the ecology of lakes and ponds for anglers and other fish. It is a very in-depth site with a lot of text, but presented in and easy-to-understand format. The information is very factual and...

A part of the PBS series "Journey to Planet Earth," this section explores the world's grasslands, some of which are in environmental danger. Includes video and educational resources.

Explore the fascinating world of the tundra biome and discover what lives and grows there through videos, pictures, and external links. Listen to the various sounds made in a tundra.

Provides color pictures and statistics on the biological and watershed characteristics of the Saint Lucia Lake on the east coast of South Africa.