内容简介：
Biology Today: An Issues Approach is a truly innovative introductory biology text. Designed to combine the teaching of biological concepts within the context of current societal issues, Biology Today encourages introductory biology students to think critically about the role that science plays in their world. The third edition has been revised and updated, and contains three new chapters: Genetic Engineering and Genomics, New Infectious Threats, and Protecting the Biosphere.