Over a span of two decades, scientists measured changes in the beak size of a population of Galápagos ground finches. This ______.
A. provided evidence of natural selection in action
B. is an example of artificial selection
C. is an example of overproduction
D. led Darwin to his theory of evolution through natural selection
Answer:A
Over a span of two decades, scientists measured changes in the beak size of a population of Galápagos ground finches. This ______.
A. provided evidence of natural selection in action B. is an example of artificial selection C. is an example of overproduction D. led Darwin to his theory of evolution through natural selection