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Biology, 21.06.2019 21:30, lkipjjjjjjjjjj5673
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, UaRemomGAY
Which image shows labeled organelles that are present only in plant cells?
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Biology, 22.06.2019 00:30, ijustneedhelp29
Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen
Answers: 2
Biology, 22.06.2019 11:30, luludawn2455
Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different
Answers: 2
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