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WABiologyQuick questions
Unit 4: Surviving in a Changing Environment
Quick questions on Homeostasis in animals: WACE Year 12 Biology
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are control systems?Show answer
Animals coordinate homeostasis with two systems. The nervous system uses fast, short-lived electrical signals along neurons for rapid responses. The endocrine system uses hormones (chemical messengers) released into the blood, producing slower but longer-lasting effects. The hypothalamus links the two, monitoring the internal environment and directing both nerve and hormone responses.
What is osmoregulation?Show answer
Osmoregulation is the control of water and solute concentration in body fluids, managed by the kidneys and the hormone ADH (antidiuretic hormone).
What is blood glucose regulation?Show answer
Blood glucose is controlled by the pancreas using two hormones in negative feedback.
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