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Open Stax: Anatomy and Physiology: Functions of the Integumentary System
Learn here all about how the integumentary system functions: such as protecting the body from invasion by microorganisms, chemicals, and other environmental factors; preventing dehydration; acting as a sensory organ; modulating body...
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Open Stax: Energy Flow Through Ecosystems
Understand how organisms acquire energy and how that energy is passed from one organism to another through food webs and their constituent food chains.
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Open Stax: Anatomy & Physiology: Anatomical Terminology
This site provides learners with information regarding anatomical terminology. It covers anatomical position, directional and regional terms used, body planes, body cavities and their organs, and the serous membranes.
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Open Stax: Anatomy & Physiology: Overview of the Digestive System
Students learn about the structure and function of the human digestive system, the accessory digestive organs, the tissue layers of the alimentary canal, the contributions of the enteric and autonomic nervous systems to digestive system...
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Open Stax: Satellites and Kepler's Laws: An Argument for Simplicity
In the following interactive students will begin to understand the laws of Kepler regarding planetary motion and derive the third law of Kepler for circular orbits. They will also discuss the Ptolemaic model of the universe.
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Open Stax: Anatomy and Physiology: Types of Tissues
The term tissue is used to describe a group of cells found together in the body. Although there are many types of cells in the human body, they are organized into four broad categories of tissues: epithelial, connective, muscle, and...
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Open Stax: Elements and Atoms, the Building Blocks of Matter
This site provides an overview of elements and atoms, the building blocks of matter.
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Open Stax: Anatomy & Physiology: Anatomy of the Lymphatic and Immune Systems
Students learn and apply understanding of the structure and function of the components of the human lymphatic and immune systems.
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Open Stax: Anatomy & Physiology: Organs and Structures of the Respiratory System
Students learn and understand the structures that make up the respiratory system, and then apply that knowledge to understand the process of oxygen and carbon dioxide exchange.
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Open Stax: Anatomy and Physiology: The Urinary System and Homeostasis
Students learn how the functions of the urinary system and other systems of the human body are interrelated.
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Open Stax: Anatomy and Physiology: Female Reproductive System
Students learn about the structure and function of the organs of the female reproductive system.
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Open Stax: Entrepreneurship: Creativity, Innovation, and Invention: How They Differ
This resources teaches students how to distinguish between creativity, innovation, and invention, and to explain the difference between pioneering and incremental innovation, and which processes are best suited to each.
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Open Stax: New Century, Old Disputes
As the United States entered the twenty-first century, old disputes continued to rear their heads. Some revolved around what it meant to be American and the rights to full citizenship. Others arose from religious conservatism and the...
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Open Stax: Anatomy and Physiology: Male and Female Reproductive Development
Find out about the development and hormonal changes associated with reproductive development for both males and females.