Biology

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

More Questions from Biology
During which of the following biological phases does "crossing over" take place?
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Which of these is not one of the four lobes in the hemispheres of the brain?
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What sort of animal is a tapeworm?
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Which one of the following might a frog eat?
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What do hibernating animals live off during their deep sleep?
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What are the tiny air sacs in the lungs called?
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Which pair of animal species and type is correct?
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What connects flower buds to the stem?
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