Checkpoint. 1. Scientists don't let emotions rule
their thinking, instead what do they
do?

Match the types of competition to their descriptions.

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.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?