AIIMS 2017 Zoology Natural Selection MCQ Question

Natural selection is best described as "the struggle for existence" because it emphasizes the competition among individuals for limited resources, which drives evolutionary change. While "the survival of the fittest" (options A and C) is often used to summarize natural selection, it can be misleading as it implies that only the strongest survive, rather than highlighting the importance of adaptability and reproductive success in various environments. Option D, while similar to B, is redundant and does not provide a distinct perspective on the concept. Understanding natural selection involves recognizing that it is the differential survival and reproduction of individuals based on their traits that leads to evolution.