The Living World
You will find the chapters in this edition of The Living World organized in discrete one-and-two page units, a practice now common among introductory texts. In this edition I have tried to improve on this approach by crafting each of these units around a single concept, so that the units become concept leaming modules. Each chapter deals with three or four general issues that together explain the key ideas that the chapter addresses, with each issue explored in a series of numbered leaming modules. Each leaming module is typically one-or-two page spreads (a few use three or four pages) ending with a statement of the key concept the student should have mastered from that module.
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