TED Talks
Ted: Ted Ed: Feedback Loops: How Nature Gets Its Rhythms
Anje-Margriet Neutel describes some common positive and negative feedback loops, examining how an ecosystem's many loops come together to make its 'trademark sound.' [5:11]
CK-12 Foundation
Ck 12: Hormone Regulation
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will learn to describe feedback mechanisms that regulate hormone secretion.
OpenStax
Open Stax: Homeostasis
This section of a textbook provides information regarding human homeostasis, a process that has the body continuously monitor its internal conditions. Includes a linked video.
CK-12 Foundation
Ck 12: Biology: Hormone Regulation
[Free Registration/Login may be required to access all resource tools.] Describes how feedback mechanisms regulate hormone secretion.