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Biology, 21.06.2019 16:10
Alaska and northern canada have a diet rich in vitamin d and their skin color is darker than predicted on the basis of iv intensity at their latitude. explain the observation:
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Biology, 21.06.2019 21:30
What causes the phospholipids to organize themselves the way they do
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Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these
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The diagram below shows several organisms in a fish tank.
Which item in the tank produces oxygen?
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