CUET Preparation Today
According to Charles Darwin’s observations: |
Present-day organisms have similarities to those that lived millions of years ago. Species evolve over time through gradual changes. Populations possess inherent variations that help them adapt and survive in their natural environments. All of the above. |
All of the above. |
The correct answer is Option (4) -All of the above. Charles Darwin's observations led him to conclude several key points about the nature of life and evolution: (1) Existing life forms share similarities to the life forms that existed millions of years ago: Darwin noted that contemporary species exhibit characteristics that reflect their ancestral forms, indicating a lineage of evolution. (2) Life forms evolve gradually: Darwin proposed that evolution occurs through small, incremental changes over long periods, rather than through sudden transformations. This gradualism is a fundamental aspect of his theory. (3) Any population has built-in variations which enable them to survive in natural conditions: Darwin recognized that within any given population, individuals possess variations in traits. These variations can affect their survival and reproductive success in changing environments. Together, these points highlight the process of natural selection, where advantageous traits become more common in a population over generations, leading to evolution. |
