food chains (ecology)

Provides an introduction to food chains and food webs, examines food chains in action in various seashore habitats, and looks at what happens when the chain is broken.

Discusses feeding methods used in the animal kingdom; nutrition and the components of a healthy diet; and food webs of herbivores, carnivores, parasites, and symbionts. Features projects throughout.

Examines the origins of the different food chains that have sustained humans throughout history, discussing how certain foods and cuisines have become a popular part of people's daily diets.

Explains what a food chain is, and looks at how the pattern of the food chain is followed in the sea, rain forest, desert, and other environments.

Text and diagrams explain what food chains and webs are, exploring the roles played by habitats, herbivores, carnivores, and omnivores as well as causes of change in food chains and webs.

Describes the steps in a food chain and discusses their importance in the maintenance of life.

Describes the underwater kelp forests that contain life forms which are essential links in the marine food chain.

Presents various plants and animals and explains their role in the food chain, including how adaptations help them survive.

Explores the concept of food chains and discusses their importance in nutrient cycles and in the maintenance of ecological balance.

Arnold is not happy when his class goes on a food chain field trip the day his cousin Janet comes to school with him.