University of California
Ucmp: Hot Blooded or Cold Blooded?
An easy-to-understand explanation of what it means to either hot- or cold-blooded.
University of Hamburg
University of Hamburg: Homeostasis Some General Principles
An online, college-level textbook about homeostasis. Find out what it is, and how this function allows us to stay alive.
Sophia Learning
Sophia: Homeostasis
This lesson will explain the process of homeostasis and how it allows organisms to maintain a stable internal environment. [0:57]