Plateletsadhere to the surface of a torn blood vessel. As they do so, they release substances which attract more platelets to the damaged area. More platelets then adhere to the damaged area. The cycle accelerates and repeats until the damaged area is sealed. a. This is a negative feedback loop because having too many platelets in one area blocks blood flow.
b. This is a positive feedback loop because the response prevents a person from hemorrhaging to death.
c. This is a positive feedback loop because the response reinforces the initial change.
d. This is a neutralfeedback loop because the response makes no changes.