Rahn, Joan Elma

Discusses plants commonly found in urban areas throughout the United States.

Describes how living things, especially animals and human beings, adapt to environmental temperature changes, in order to conserve heat in cold weather and lose it in hot weather.

Describes the many ways plants are dispersed by wind, water, animals, and people.

Introduces the many ways plants and animals capture animals for food, pollination, mating, and other purposes.

Introduces the function of bones, joints, and muscles using the chicken and other meat available at the grocery store as examples.

Describes the many ways that flowers are pollinated and the pollinating agents that make the differences in flowers possible.

Discusses the formation and growth of plant parts such as stems, leaves, roots, flowers, tubers, and buds and the germination of seeds.

Describes some diverse types of eyes from flatworms to humans. Includes information on light and simple experiments.

Describes the anatomy of some common food plants and gives directions for 25 simple demonstrations and experiments illustrating the functions of some plant parts, especially those used for food.