One of the original amish colonies rose from a ship of colonists that came from europe. the ship’s captain, who had polydactyly, a rare dominant trait, was one of the original colonists. today, we see a much higher frequency of polydactyly in the amish population. this is an example of:

a. natural selection
b. genetic drift
c. founder effect
d. b and c

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 the most appropriate method of gaining weight (muscle mass)

Which law represents a balanced chemical equation?