Biology

What do we call things that directly affect all activities of cells?

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What nutrient group is sugar in?
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What are squirrels thought to bury to store for a winter supply of food?
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What's the scientific term for an animal that eats the sort of foods humans do?
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What substance in your ears helps keep germs and dirt out?
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What is another name for a baby frog?
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How many stages of sleep are there?
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Which of the following is on the lowest level of ecological organization?
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Which of these is not one of the four lobes in the hemispheres of the brain?
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