An eight-unit electronic textbook provides a guide to AP® Biology. Each of the 28 chapters include an introduction, multiple lessons, a summary, review questions, and test prep questions. Teachers see how each lesson connects to a big...

From the scientific method to the function of a cell, the eBook has it all. A useful resource provides a free biology textbook with a focus on context. The text begins with an overview of the process of scientific inquiry and biology...

How diverse are living things? Individuals explore topics such as cells as the foundation for life, cell division and genetics, molecular biology, and animal reproduction using an open resource Biology textbook. They learn key terms...

Reiew important information and key points about cell structures.

Through full-color images and concise information, learn about the origin of cells. Discover some of the notable studies surrounding the history of life on Earth.

A good biochemistry site that includes information about the structure of adenosine triphosphate and a description of the role that it plays in the cell.

This digital textbook covers core biology concepts and includes interactive features, real-world examples, videos, and study guides.

A diagram of a labelled animal cell. Major structures of the animal cell have linked reference information about their structure and function.

In this online biology textbook, learn about atoms and molecules as they relate to life. Find out about topics such as electrons and energy, chemical bonding, and chemical reactions.

Resource provides a holistic and complete meiosis lesson with illustrations, animations, glossary, and links. Extremely detailed and helpful site.

This tutorial gives an overview of prokaryotes (bacteria and archaea) along with an explanation of structural features of prokaryotic cells.

Learn how prokaryotes reproduce by binary fission, and find out the use of E. coli bacteria in molecular biology.

Find out what a virus is, and learn about the structure of a virus and how it infects a cell.

This digital textbook covers core life science concepts and includes interactive features, real-world examples, and videos.

Study the mechanisms that generate variation in prokaryote populations. Also learn about transduction, transformation, conjugation, as well as transposable elements.