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▹ Answer
<em>B. water cycle</em>
▹ Step-by-Step Explanation
Water is something that is dependent on amongst living things. Without the water cycle, there wouldn't be a source of water and living things wouldn't be able to survive.
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<span>A. </span>Mechanoreceptor–temperature </span>
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<span>B. </span>Photoreceptor–chemicals </span>
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C. Pain receptor–tissue injury
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<span>D. </span>Chemoreceptor–pressure </span>
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Answer:A. allow them to see over a wider area to detect predators
Explanation:This helps them because it gives them a large field of view, from which to avoid predators.