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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 00:00
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Biology, 22.06.2019 01:10
Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.
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Biology, 22.06.2019 03:50
Explain how the political influence of african americans leaders became weaker.
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