Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

By the end of this section, you will be able to do the following:

Describe the effects of abiotic factors on the composition of plant and animal communities in aquatic biomes
Compare and contrast the characteristics of the ocean zones
Summarize the characteristics of standing water and flowing water freshwater biomes

Understand the living and nonliving aspects of aquatic ecosystems.

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What is a lake? Discover the answer to this question when you explore this informative resource. This site provides information on how temperature and seasonal changes effects lakes, how lakes are formed, how lakes compare in numbers to each other and more.

This lesson will illustrate the unique characteristics of oceans and oceanic life. It is 4 of 4 in the series titled "Oceans."