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Biology, 22.06.2019 15:40
Which of these is one of the nitrogenous bases in dna? a. proline b. leucine c. glycine d. thymine
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Biology, 22.06.2019 23:00
Planning along the natural slope of the land to reduce soil erosion is called
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Biology, 23.06.2019 00:10
1. beginning with all chambers of the heart in the "relaxed" phase, describe the cardiac cycle in mammals, with systole and diastole of the atria and ventricles. for each time point in the cycle you select, state the following: β’ whether the atria and ventricles are contracting or relaxing β’ whether the av valves and semilunar valves are closed or open β’ whether the pressure in the atria and ventricles is high or low
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Biology, 23.06.2019 08:00
Why did europeans call the bubonic plague the black death? because that is what the chinese called it because of the black boils that developed on the skin of infected individuals because the plague brought much destruction to europe because the disease was spread by black rats
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