Final answer:
Adaptation is the process by which populations can become increasingly well suited to their environment over time. This occurs through natural selection, where individuals with advantageous traits are more likely to survive and reproduce.
Step-by-step explanation:
Adaptation is the process by which populations of organisms develop traits that make them better suited for their environment over time. This occurs because individuals with advantageous traits are more likely to survive and reproduce, passing on these traits to future generations. Natural selection is the mechanism that drives adaptation, wherein traits that offer a survival advantage become more prevalent in a population over time.