Answers created by Elvi
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Plants don't move around, so why do they need energy?
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Question #988c5
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How is the central nervous system protected from external and internal injury?
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Question #491b8
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Question #143c9
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Can you explain the hearing mechanism ?
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How does stress affect the male reproductive system?
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How do you draw the water cycle?
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How do organelles help cells survive?
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Which way does the Earth rotate and why?
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What are the steps of the phosphorus cycle?
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What is nuclear energy?
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What are the imortant characteristics of a pie chart?
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Question #d1b28
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Question #ee8ad