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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 09:40
Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.
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Biology, 22.06.2019 15:00
If you relate the doppler effect on sound to the color of light waves, a police car would be the color as it approaches and the color as it recedes away from the observer.
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Mathematics, 23.08.2019 04:40
History, 23.08.2019 04:40
History, 23.08.2019 04:40
Mathematics, 23.08.2019 04:40
Mathematics, 23.08.2019 04:40
Social Studies, 23.08.2019 04:40
Mathematics, 23.08.2019 04:40
Social Studies, 23.08.2019 04:40
Chemistry, 23.08.2019 04:40
History, 23.08.2019 04:40