A mutation changes a receptor so that it responds only when the internal condition is far from optimum. What is the most likely result?
Effectors detect every small change, so coordination centres are no longer required.
The optimum level changes to match the threshold at which the receptor responds.
Corrective responses begin later, so fluctuations around the optimum become larger.
Corrective responses begin earlier, so fluctuations around the optimum become smaller.
40 exam-style questions on AQA GCSE Biology 5.1 Homeostasis, covering 5.1 Homeostasis. Each one has a worked solution and a mark scheme showing where the marks go.