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  2. Homeostasis and feedback loops (article) | Khan Academy

    Another example of a positive homeostatic feedback loop is blood clotting. When a blood vessel is injured, platelets adhere to the site and release chemicals that attract more platelets, rapidly forming …

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

    Positive feedback loops are usually found in processes that need to be pushed to completion, not when conditions need to be maintained. Now, let’s look at some examples of positive feedback loops in …

  5. Khan Academy

    Explore positive feedback loops in childbirth, fruit ripening, and blood clotting, crucial for physiological processes and maintaining homeostasis.

  6. Apply: homeostasis and feedback loops - Khan Academy

    Apply your understanding of homeostasis and feedback loops in this set of free, standards-aligned practice questions.

  7. Bozeman science: Positive and negative feedback loops

    Andersen and welcome to biology essentials video number 18 this is on positive and negative feedback loops if you've ever driven you've probably seen a sign like this this is a guilt sign so they put the …

  8. Feedback (practice) | Khan Academy

    Which of the following correctly describes how positive and negative feedback are different?

  9. Homeostasis (article) | Feedback | Khan Academy

    Jun 18, 2016 · A positive feedback loop comes into play during childbirth. In childbirth, the baby's head presses on the cervix—the bottom of the uterus, through which the baby must emerge—and …

  10. Feedback in living systems (video) | Khan Academy

    So now we know that homeostatic mechanisms usually involve negative feedback loops, but what about positive feedback loops? Well, many organisms actually use positive feedback loops to bring …