Where do hurricanes originate (start at)? B. Warm tropical oceans
C. Cold polar regions
D. Warm mountain tops
A. Dry land

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.

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )

You see a white marker with an orange circle and black lettering. what does this marker tell you