CK-12 Foundation
Ck 12: Blood
[Free Registration/Login may be required to access all resource tools.] In this interactive tutorial students will learn to explain how the heart pumps blood throughout the body. Students will explain the composition of blood and will...
Khan Academy
Khan Academy: Innate Immunity
The human body requires a multilayered immune system to keep it running smoothly. The two main classes of the immune system are the innate immune system and the adaptive immune system, or "acquired immunity". This article discusses the...
Other
Hon Allergy Glossary: Antibody (Ab)
A good paragraph with abundant vocabulary links that can help you determine the role of the function of antibodies.
CK-12 Foundation
Ck 12: Life Science: Inflammatory Response
[Free Registration/Login may be required to access all resource tools.] A scrape is a break in the skin that may let pathogens enter the body. If bacteria enter through the scrape, they could cause an infection. These bacteria would then...
BBC
Bbc: Gcse Bitesize: Cellular Respiration and Transport
The circulatory system transports substances between the exchange surface and cells. It delivers oxygen and glucose to the tissues for respiration, which is the release of energy to cells.
