Why was Darwin's theory of natural selection taken more seriously than similar theories proposed before him? Darwin was a famous scientist.

He had research and evidence to support his theory.

No one ever proposed a similar theory before him.

It was obvious to the public before he proposed his theory.

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.

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy

Ecology can best be described as the study of what