Which two types of structures make up the earthworm's heart? a)specialized cells b)organ systems c)tissues d)organisms

This is a type pf behavior that animals are born with and them to survive

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.

Me . based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?