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Biology, 21.06.2019 20:00
In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls
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In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?
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Biology, 22.06.2019 06:30
What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond
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Saturn's moon Enceladus orbits the planet at a distance of 2.38 x 10 m. Enceladus orbital
period ab...
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