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 the processes of digestion and absorption
Compare and contrast different types of digestive systems
Explain the specialized functions of the organs involved in processing food in the body
Describe the ways in which organs work together to digest food and absorb nutrients

The digestive system is amazing: it takes the foods we eat and breaks them into smaller components that our body can use for energy, cell repair and growth. This lesson introduces students to the main parts of the digestive system and how they interact. In addition, students learn about some of the challenges astronauts face when trying to eat in outer space.

Students learn the function of the liver and how biomedical engineers can use liver regeneration to help people. Students test the effects of toxic chemicals on a beef liver by adding hydrogen peroxide to various liver and salt solutions. They observe, record and graph their results.

This site from MayoClinic.com provides great information as to the prevention of the viral disease Hepatitis A. It discusses protecting yourself as well as protecting others.

Information about the digestive system, why digestion is important, how food is digested, and how the process is controlled. Includes a diagram of the body parts involved.

Use this site to learn about the amazing process of digestion through the digestive system. View great drawings about other parts of the body that aid in this process. Available in Spanish.

This site from WebMD Health contains great information on Hepatitis A. Several pictures are provided along with information on topics such as: Causes, symptoms, risks, exams and tests, treatment, prevention and surgery.