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2. Homeostasis (article) | Feedback | Khan Academy

   www.khanacademy.org/.../cell-communication-and-cell-cycle/feedback/a/homeostasis

   Learn how organisms maintain homeostasis, or a stable internal environment.

3. Physiological concept of positive and negative feedback (video) |...

   www.khanacademy.org/.../v/physiological-concept-of-positive-and-negative-feedback

   Positive and negative feedback mechanisms control many physiological processes. Positive feedback increases a product, creating a chain effect. Negative feedback controls a process to prevent product accumulation, maintaining balance in our bodies.

4. Negative feedback loop examples (article) | Khan Academy

   www.khanacademy.org/.../a/negative-feedback-loop-examples

   Learn about the negative feedback loops that maintain body temperature, breathing rate, blood glucose levels, and more.

5. Bozeman science: Positive and negative feedback loops (video) |...

   www.khanacademy.org/.../v/positive-and-negative-feedback-loops-bozeman

   Bozeman science: Positive and negative feedback loops (video) | Khan Academy. HS biology (archived) Course: HS biology (archived) > Unit 28. Lesson 1: Body structure & homeostasis. Anatomy and physiology introduction.

6. Khan Academy

   www.khanacademy.org/.../v/hormone-concentration-metabolism-negative-feedback

   If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

7. Body structure and homeostasis review (article) | Khan Academy

   www.khanacademy.org/science/high-school-biology/hs-human-body-systems/hs-body...

   High school biology (DEPRECATED) Course: High school biology (DEPRECATED) > Unit 8. Lesson 1: Body structure and homeostasis. Homeostasis. Homeostasis. Tissues, organs, & organ systems. Body structure and homeostasis review. Body structure and homeostasis. Science>.

8. Homeostasis (article) | Human body systems | Khan Academy

   www.khanacademy.org/science/high-school-biology/hs-human-body-systems/hs-body...

   Course: High school biology (DEPRECATED) > Unit 8. Lesson 1: Body structure and homeostasis. Homeostasis. Homeostasis. Tissues, organs, & organ systems. Body structure and homeostasis review. Body structure and homeostasis.

9. Lesson 6: Homeostasis - Khan Academy

   www.khanacademy.org/.../e/understand-homeostasis-and-feedback-loops

   Lesson 6: Homeostasis. Feedback in living systems. Homeostasis and feedback loops. Negative feedback loop examples. Positive feedback loop examples. Understand: homeostasis and feedback loops. Apply: homeostasis and feedback loops. >.

10. Khan Academy

    www.khanacademy.org/science/electrical-engineering/ee-amplifiers/ee-opamp/v/ee...

    Discover how an operational amplifier , or op-amp, works and how it can be used to amplify or filter signals in electrical engineering . Watch a video lesson from Khan Academy, a free online learning platform.

11. Intro to negative numbers (video) | Khan Academy

    www.khanacademy.org/math/arithmetic-home/negative-numbers/neg-num-intro/v/...

    Mysterious negative numbers! What ARE they? They are numbers less than zero. If you understand the nature of below zero temperatures, you can understand negative numbers. We'll help.