Learn about how the immune system works. Topics include antigens and antibodies.

Read a passage about the activation of T lymphocytes and answer the follow-up questions to practice for the MCAT.

[Free Registration/Login may be required to access all resource tools.] Almost all of us have had a sore throat at some time. Maybe you had your tonsils out when you were younger? Why? Your tonsils are two lumps of tissue that work as...

Tutorial and game on vocabulary and functions of the immune system. Covers different cell types, immune responses, germs and pathogens, and antibiotics.

The purpose of this lesson plan is to relate the action of vaccines to the human immune system. In this lesson plan, students will explore infectious disease and immunity and learn how vaccines help the body defend itself against...