Rice University
Biology for AP® Courses
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...
BC Open Textbooks
Concepts of Biology – 1st Canadian Edition
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...
Utah Education Network (UEN)
Utah Open Textbook: 7th Grade Science
Physical and biological factors affect everyday living. Scholars explore electromagnetic forces, motion, the rock cycle, and geological changes. They examine cells as the building blocks of life and how organisms reproduce using images...
Biology Pages
Kimball's Biology Pages: The Human Respiratory System
Everything you need to know about the respiratory system. The page includes modules regarding The Pathway, Breathing, Central Control of Breathing, Local Control of Breathing, and Diseases of the Lungs. Designed to be used as classroom...
Khan Academy
Khan Academy: Animal & Human Viruses
Learn about viruses of humans and other animals, the Baltimore classification system, and the HIV life cycle.
Biology Pages
Kimball's Biology Pages: Anatomy of the Human Circulatory System
This site is produced by John W. Kimball, a retired biology teacher who wrote the textbook that these pages came from. The excerpt explains the different parts of the circulation system and how they function. Includes great pictures!
Biology Pages
Kimball's Biology Pages: The Human Gastrointestinal (Gi) Tract
This site provides an in-depth look at the human gastrointestinal tract.
Biology Pages
Kimball's Biology Pages: The Kidneys
An online biology textbook on the structure and function of the kidneys. Full of labeled, color diagrams for better understanding.
Other
Biology at Clermont College: The Respiratory System
What do you know about the respiratory system? This site gives a detailed description of this integral human body system. Don't miss out.
Khan Academy
Khan Academy: Body Structure and Homeostasis Review
Review information and key points about human body struture and homeostasis.
CK-12 Foundation
Ck 12: Life Science for Middle School
This digital textbook covers core life science concepts and includes interactive features, real-world examples, and videos.