food chains (ecology)

Text and photographs describe rain forest animals and examine their place in the food chain.

Text and photographs describe prairie animals and examine their place in the food chain.

Text and photographs describe ocean animals and examine their place in the food chain.

Text and photographs describe mountain animals and examine their place in the food chain.

Describes the importance of maintaining the food chain and what happens when a species disappears from an area.

Explains various components of a food chain and discusses the concepts of food webs, umbrella species, biogeochemical cycles, and more.

Text and photographs describe desert animals and examine their place in the food chain.

Text and photographs describe arctic tundra animals and examine their place in the food chain.

Explores how plants and animals get their food from a variety of sources and how food chains describe the feeding relationships between living things.

Describes the feeding behaviors of various marine animals during the four seasons; and includes food web discussion questions and activities.