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:

Classify the different types of muscle tissue
Explain the role of muscles in locomotion

"Have you ever had a favorite pair of funky shoes that you wore every single day, until they started to hurt the bottoms of your feet? Everhelped your mom or dad plant flowers in the yard and later noticed a weird bump on your palm? Have you taken a tap dancing class that left painful little bumps on your toes?"