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Biology, 21.06.2019 21:30
What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.
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Biology, 22.06.2019 01:30
How do you date a sample of rock that you suspect as being one of the earliest on earth
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Biology, 22.06.2019 08:50
If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because
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Test variable (independent variable): CRICKET FROGS Outcome variable (dependent variable):population...
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