Which statement correctly describes an aspect of homeostasis?
Receptors detect a change in the internal environment and send signals to a control center.
Effectors detect alterations in physiological variables to initiate a hormonal response.
Negative feedback loops amplify deviations from a set point to accelerate recovery.
Homeostatic mechanisms maintain internal conditions at a completely static, unvarying level.
19 exam-style questions on OCR A A Level Biology Communication and homeostasis. Each one has a worked solution and a mark scheme showing where the marks go.