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Biology, 21.06.2019 18:30
Describe the primary and secondary immune response in terms of speed and number of antibodies produced?
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Biology, 22.06.2019 00:00
How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?
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Biology, 22.06.2019 03:00
Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.
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Biology, 22.06.2019 08:00
Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geological equipment to analyze the composition of rock?
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What is the major source of energy for food chains? A. Water B. Air C. Sunlight D. Grass...
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