Positive And Negative Feedback Worksheet. The link just displayed will take you a blog posting with videos covering the learning objective of "SWBAT understand how feedback loops allow living. At the beginning of the worksheet, students Negative And Positive Feedback.
He also explains what can happen when a feedback loop is altered. Four pages of worksheets using positive and negative numbers. The injured area attracts platelets, and each of these platelets secretes chemicals that attract more platelets.
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A positive feedback loop increases the effect of the change and produces instability. A video explains both positive and negative feedback loops including body temperature, ripening fruit, and diabetes. He also explains what can happen when a feedback loop is altered.