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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, 21.06.2019 23:00
Which image shows labeled organelles that are present only in plant cells?
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If your blood becomes too concentrated with iona, what will happen to the red blood cells
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Biology, 22.06.2019 10:30
Natural selection changes allele frequencies because some survive and reproduce more successfully than others.
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Which plant have small followers without petals...
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