Explains and illustrates the interdependent relationships between plants and animals that enable their survival. Discusses out how plants and animals interact, cooperate and compete and shows the constant exchange of nutrients and gases that assures their interdependency. Explores why animals are vital to the reproductive process of many plants and how animals rely on plants for food and shelter. Concludes with an experiment that explores how plants depend on animals for pollination and whether or not a flower's color is responsible for reproductive success.