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...

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...

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...

Explore the levels of organization in the human body.

Review information and key points about human body struture and homeostasis.

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

Understand the structure and function of the peripheral nervous system in the human body.

Understand the human body's inflammatory responses.

Learn about the human body's immune response to pathogens.

Take a look at blood pressure in the human body.

Learn about the blood vessels of the human body.

Understand digestive health of the human body.

Learn how the enzymes in the digestive system help with the digestive process in the human body.

Understand homeostasis and feedback regulation in the human body.

Learn about the different types of muscles in the human body.

Understand the structure and function of different types of joints in the human body.

Understand the human body's nutrient needs.

Learn about the skeletal muscles of the human body.

Understand the human body's sense of touch.

Understand the structure and function of a nerve cell, and how messages are transmitted throughout the human body.

Learn about the process of cellular respiration in the human body.

Learn about infectious diseases in the human body.

Learn about some of the nervous system disorders of the human body.

Understand how some respiratory disorders affect the human body.