What evolutionary term describes the independent development of similar hydrodynamic body forms in unrelated organisms like dolphins (mammals) and sharks (cartilaginous fish)?
Answer and explanation
Correct answer: B. convergent evolution
- Step 1: Convergent evolution occurs when distantly related organisms independently evolve analogous features due to adapting to similar environmental pressures (e.g. aquatic swimming). Answer: convergent evolution. Why not the others: Divergent evolution leads to different traits from a common ancestor; adaptive radiation is diversification into multiple ecological niches; coevolution involves reciprocal adaptations (e.g. flowers and pollinators).
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