food chains (ecology)

"Gives information on types of food animals eat and highlights different animals, both large and small from land to sea."--Provided by publisher.

Traces the cycle of energy from one organism to the other, examining the interdependence between plant and animal life, and discussing food chains, food webs, and the energy pyramid.

Examines the impact of an invasive plant species on an environment, discussing how new plants get introduced into foreign habitats, and describing examples from history.

Looks at the way animals and plants live together in different habitats.

Examines the various animals that inhabit the world's oceans and discusses the food chain and what happens to a food web when a food chain breaks down as well as methods that can be taken to protect the ocean food chain.

Examines the various animals that inhabit the world's grassland regions and discusses the food chain and what happens to a food web when a food chain breaks down as well as methods that can be taken to protect the grassland food chain.

Various animals and the predators seeking them affect the fate of a stray walnut, demonstrating the food chain in nature. Includes information on the walnut and the animals in the story.

Videocassette. Presents the amazing myriad of animal life that exists on our planet. Students will learn about a variety of animal species including birds, fish, amphibians, reptiles, mammals, insects and more. Other programs focus on specific aspects of animal life - their basic needs, behavior, adaptations, life cycles and their roles in the food chain.

Describes the physical characteristics and eating habits of plants, crustaceans, and other sea creatures that make their home in tide pools.