Question

evaluate the claim that blood glucose regulation is an example of negative feedback. which evidence best supports this claim? a) the release of insulin causes a continual rise in blood glucose levels. b) insulin acts to reduce blood glucose, returning the body to homeostasis. c) glucose levels increase even more when insulin is released. d) once glucose levels are low, the pancreas permanently stops functioning.

Explanation:

Negative feedback aims to maintain homeostasis by counter - acting changes. Insulin reduces high blood glucose levels, bringing the body back to a stable state, which is characteristic of negative feedback. Option a and c are incorrect as insulin lowers, not raises, blood glucose. Option d is wrong as the pancreas doesn't permanently stop functioning when glucose levels are low.

Answer:

B. Insulin acts to reduce blood glucose, returning the body to homeostasis.