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Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?
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Which statements explains what the fossil records indicates? check all that apply. a) earth is 4.5 billion years old b) many organisms have become extinct c) mammals have always existed on earth d) mass extinctions have occurred several times on earth e) the amount of water on earth has decreased over time?
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Why is it important that each contour line represents the same amount of gain or loss in elevation
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Which of these do plants need for photosynthesis to occur? A. glucose and water B. water and oxygen...
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