Question

1. which of the following is an example of a positive feedback loop? a. regulating body temperature b. balancing water content in cells c. regulating blood sugar levels d. blood clotting after an injury

Explanation:

Positive - feedback loops amplify the initial change. Blood clotting after injury is a positive - feedback process as the initial injury triggers a cascade that leads to more clotting factors being activated to form a clot. The other options (regulating body temperature, balancing water content in cells, regulating blood sugar levels) are examples of negative - feedback loops which aim to maintain homeostasis by counteracting changes.

Answer:

d. Blood clotting after an injury