The current atomic model would be revised if
a. better microscopes were being used to study its structure.

b. better microscopes are invented in the future.
c. new information about an atom's structure is discovered.

d. a new element is discovered in the future

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.

Match the types of competition to their descriptions

Which event would lead to primary succession of a forest?