What is the phenomenon called when distantly related organisms evolve similar traits?

• A. Divergent Evolution
• B. Adaptive Radiation
• C. Convergent Evolution
• D. Natural Selection

Answer: (C)

The phenomenon where distantly related organisms evolve similar traits is termed convergent evolution. This occurs when different species, often from different evolutionary backgrounds, face similar environmental challenges and adapt in comparable ways, leading them to develop analogous structures or traits.

For example, the wings of bats and the wings of birds are similar in function and structure, but these two groups evolved these traits independently in response to the need for flight, despite their distant common ancestry.

In contrast, divergent evolution refers to the process where related species evolve different traits, often due to different environments or ecological niches. Adaptive radiation is a specific type of divergent evolution where a single ancestral species rapidly evolves into a variety of forms to adapt to diverse environments. Natural selection is the mechanism through which advantageous traits become more common in a population over generations, but it does not specifically refer to the independent evolution of similar traits in unrelated species.