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Biology, 21.06.2019 22:00
Explain why phospholipid molecules form a bilayer. (3 marks)
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Biology, 21.06.2019 23:50
Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.
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Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit
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Biology, 22.06.2019 14:00
Why are current extinctions of concern to enviromentalists?
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Why is it more important to check for errors during dna replication than during protein synthesis?...
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