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Biology, 22.06.2019 09:30
Resperation is a way to release carbon back into the atmosphere
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Biology, 22.06.2019 10:00
Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins
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Biology, 22.06.2019 10:20
During convection, less dense fluid rises and denser fluid sinks.
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Biology, 22.06.2019 10:50
The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million
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True or false? if you did not control variables in a experiment, there would be no way to know whic...
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