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GCSE
A-LEVEL
Study Calendar
Revision World
Revision Videos
Revision Maths
Student Jungle
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A-Level Revision
Human Biology A-Level Revision
Genetics & Homeostasis
QUESTIONS
Question 9
Answer
CNS = hypothalamus PNS = the skin
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Question 9
Breadcrumb
Home
A-Level Revision
Human Biology A-Level Revision
Genetics & Homeostasis
QUESTIONS
Question 9
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