When a blood vessel is injured,it releases chemicals that activate platelets and cause them to stick to the injury site.The activated platelets in turn release more chemicals and attract more platelets to the injury site until the wound is fully sealed.This process of blood clotting is an example of

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The process of blood clotting involves positive feedback, as the initial release of chemicals from the injured blood vessel activate platelets which release more chemicals, attracting more platelets to the injury site, and so on until the wound is sealed. This is an example of positive feedback because it amplifies the initial response and promotes the formation of a blood clot.

When a Blood Vessel Is Injured,it Releases Chemicals That Activate