biology

Describes how the extinction of species caused by habitat destruction has increased to a rate that may be 10,000 or more times greater thatn the rate prior to human intervention.

Explains how genes determine traits such as eye color and height and how traits are passed from parents to children, discussing chromosomes, DNA, dominant and recessive traits, meiosis, and mutations, and includes an experiment on the DNA of peas.

Using live action video and sensational computer animation, this video intrduces the viewer to the amazing world of the cell.

Contains over 4,700 alphabetically arranged entries that provide definitions and explanations of words and phrases associated with biology and biochemistry; with coverage of key terms from medicine and paleontology, biographies of significant scientists, chronologies, and feature articles.

Describes the climate, plant and animal life, origins, and human impacts of four principal types of biomes, including terrestrial, freshwater, marine, and human-dominated, and discusses what scientific exploration has revealed about each of them. Includes maps and photographs.

Collects poems that examine survival in nature, and includes information about a number of plants and animals.

Provides number-related facts about the lives of a variety of animals, such as the the number of antlers a caribou will grow and shed in a lifetime.

Simple text and photographs introduce the desert biome, including the environment, plants, and animals.

Discusses how children can determine if an object is alive by looking at whether it needs water, food, and air.