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One specific substance necessary for muscle activity that is delivered to muscles more effectively as a result of increased heart rate?
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Why are scientists concerned about the depletion of the ozone levels in the stratosphere?
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The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body
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Explain how the parts of the peripheral nervous system work with the central nervous system to produce a response to the stimulus
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One specific substance necessary for muscle activity that is delivered to muscles more effectively a...
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