Really need big help on these questions please
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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 06:00
Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell
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Biology, 22.06.2019 14:10
Select the correct answer.what is the observable characteristic of a person called? o a. genotypephenotypeoc.alleleo d.gene
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Biology, 22.06.2019 15:30
Kate is studying the transformation from unicellular to multicellular organisms. which metaphor is the most appropriate to apply to the map of the timeline.
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