The human body possesses complex coordination and response systems to ensure survival in fluctuating environments.
(i) Identify the physiological term used to describe the maintenance of a relatively constant internal environment within an organism.
(ii) State the specific term given to the homeostatic regulation of core body temperature.
A researcher stepping onto an Antarctic ice sheet experiences a sudden drop in ambient temperature, threatening to lower their core body temperature.
Explain how the human body detects this decrease and the physiological mechanisms it employs to restore core temperature back to its normal level.
Homeostatic responses are coordinated by both the nervous and endocrine systems.
State three differences between the transmission of signals in the nervous system and the endocrine system.
26 exam-style questions on Edexcel IGCSE Biology Co-ordination and response. Each one has a worked solution and a mark scheme showing where the marks go.