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Key Idea Review 1
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Question 17
2) 2
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Question 16
2) Hormones
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Question 8
4) virus
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Question 11
4) May affect areas far from where they are produced
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Question 14
2)
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Question 13
3) Increased perspiration
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Question 7
4) Respiration
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Question 18
4)
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Question 12
1) End-products of digestion
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Question 10
4) Ribosome
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Question 20
4) Kidney
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