Question

what are examples of positive feedback? check all that apply.
□ labor contractions
☑ blood clotting
☑ temperature
□ ph
□ glucose

Explanation:

• Labor contractions: During childbirth, uterine contractions stimulate the release of oxytocin, which further intensifies contractions (positive feedback to complete birth).
• Blood clotting: A damaged blood vessel triggers a clotting cascade where each step activates the next, amplifying the response to form a clot (positive feedback to stop bleeding).
• Temperature, pH, and glucose regulation in the body are typically negative feedback (e.g., temperature regulation cools/warms to return to set - point, pH and glucose are maintained via negative feedback loops), so they are not positive feedback examples.

Answer:

A. Labor contractions, B. Blood clotting