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:

Explain that meiosis and sexual reproduction are highly evolved traits
Identify variation among offspring as a potential evolutionary advantage of sexual reproduction
Describe the three different life-cycle types among sexually reproducing multicellular organisms.

Blended learning lesson plans for primary aged students to investigate butterflies and the butterfly life cycle. Great to use during small group/ guided reading time. 

This video introduces how HIV enters the host cell, how it co-opts the cellular machinery to reproduce, and how to fight HIV infection.

This video explains how HIV enters the host cell, how it co-opts the cellular machinery to reproduce, and how to fight HIV infection.