Serendip
Homeostasis, Negative Feedback, and Positive Feedback
So many bodily activities depend on homeostasis! Give learners a solid background to understand the basic process of the human body. Scholars first examine negative feedback loops contributing to body temperature regulation and then a...
Science Buddies
Science Buddies: How Are Antibodies Used for Blood Typing?
The human immune system has various ways of responding to an infection caused by bacteria or viruses. Our bodies produce proteins (antibodies) that are highly specific for the infectious agent as a part of our "humoral" immune response....
University of Arizona
The Biology Project: Human Biology
This site provides basic information on human genetics and reproduction using tutorials, simulations, images and quizzes. There are also links to other worthwhile sites.