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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 10:00
Vessels draining the myocardium of the heart, open primarily ,into which chamber?
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Biology, 22.06.2019 11:00
At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary
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Biology, 18.06.2020 03:57
Computers and Technology, 18.06.2020 03:57
Mathematics, 18.06.2020 03:57
History, 18.06.2020 03:57
Biology, 18.06.2020 03:57
History, 18.06.2020 03:57