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:

Identify significant threats to biodiversity
Explain the effects of habitat loss, the introduction of exotic species, and hunting on biodiversity
Identify the early and predicted effects of climate change on biodiversity

This in-depth site provides middle and high school science teachers with a wide array of free instructional resources, such as slide sets, streaming video presentations, and laboratory activities. Information is provided that is supported by lessons and web-based materials.

What exactly makes a person a scientist and what is their role in society? Students develop an understanding of the interrelationships among individuals, cultures, societies, science, and technology.

A free CK-12 account is required to view all materials.

This pathway provides an introduction to genetic disorders including examining the different ways genetic information may be changed and specific examples of genetic disease. For a deeper look at this topic, we recommend the pathway Modern Understandings of Inheritance from the OpenStax textbook Biology for AP® Courses.

Part of a site on genetics, this page explores DNA as a forensic science. Explains how and why DNA can be used to convict or acquit a criminal from wrongdoing using forensic DNA analysis. Teacher resources too.

A very nice presentation and explanation of the issues and questions related to stem cell research. Not a lot of detail, but a great place to start framing the questions.

Georgetown University site with a lengthy article on many aspects of gene therapy. Includes background and historical information and numerous resources on the topic. Focus here is on the ethics of these types of therapies.

Explains the goals of the Human Genome Project. It also explains some of the ethical, legal and social challenges associated with this new technology.

Excellent site where students are challenged to read several case studies and make choices about what they would do in the situation. After they choose they are presented with some of the consequences that their decision may produce in order to see if it changes their decision.

This site is a must see for any lesson or unit on biotechnology! It is a companion to the PBS video "Bloodlines: Technology Hits Home," although it can certainly be used without the video. It's a fantastic site that will challenge students to think about their opinions in several ethical dilemmas. There is a timeline of genetic and reproductive technology and more.

This pathway makes aware of scientific misconduct and introduces how it can be countered by research integrity.

This unit focuses on teaching students about the many aspects of biomedical engineering (BME). Students come to see that BME is a broad field that relies on concepts from many engineering disciplines. They also begin to understand some of the special considerations that must be made when dealing with the human body. Activities and class discussions encourage students to think as engineers to come up with their own solutions to some of medical challenges that have been solved throughout the history of BME. Class time iincludes brainstorming and presenting ideas to the class for discussion. Specific activities include examination of the material properties and functions of surgical instruments and prosthetics, a simulation of the training experience of a surgical resident, and an investigation of the properties of fluid flow in vascular tissue.