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The questions in this quiz are suitable for GCSE biology students studying homeostasis, the nervous system, the reflex arc, the brain and the eye.

If you struggled with the quiz, don't panic - we've got you! You can revise energy stores by clicking the links below.

To brush up on your GCSE transport in cells knowledge, click on the link to your awarding body specific revision:

Click the links below to try our GCSE biology exam-style or quick-fire quizzes and test your skills and knowledge.