2022 AQA GCSE Biology Paper 2 with 100% Correct Answers
What is homeostasis? Homeostasis is the maintenance of a constant internal environment in order to maintain optimum conditions for enzyme and cellular function. Give examples of conditions maintained by homeostasis in the body ● Blood glucose concentration ● Body temperature ● Water levels What two types of responses are used in body control systems? Nervous and chemical What three components do all control systems have? ● Receptors ● Coordination centres
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2022 aqa gcse biology paper 2 with 100 correct answers
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what is homeostasis homeostasis is the maintenance of a constant internal environment in order to maintain optimum conditions for enzyme and c