Fleisher, Paul

Describes the role of an oak tree in the ecology of the Pennsylvania forest in which it lives.

Describes how coral reefs are formed, and some of the many plants and animals that live there.

Describes the ecology of mountain streams and how they feed and shelter plants and animals.

Presents definitions of terms most commonly encountered in discussions of the nuclear arms race.

Describes the interior of such objects as a piano, telephone, clock, toilet, and camera, and explains how these devices work.

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.