food chains (ecology)

Learn about the ocean habitat and the animals that live there.

Learn about the grassland habitat and the animals that live there.

Learn about the forest habitat and the animals that live there.

Learn about the desert habitat and the animals that live there.

Learn about the arctic habitat and the animals that live there.

Describes how grassland plants and animals serve as food for each other.

Describes how the plants and animals of the Earth's deserts serve as food for each other.

Describes the components of food webs and food chains in the ocean, discussing plants, plant eaters, meat eaters, and decomposers, as well as human factors that harm oceans.

Photographs, illustrations, and text describe the animals and plants that live in the forest.

Describes how the plants and animals of the tundra serve as food for each other.