The fight or flight response includes greater heart output and a rise in blood pressure. This response is accomplished by the release of adrenaline, a hormone. Which systems are mainly interacting to create such a response? A. excretory and digestive

B .muscular and skeletal

C. circulatory and immune

D. circulatory and endocrine

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 these definitions have been paired with the correct type of cell?

Identify the area on the image where the force of attraction is the strongest.