Analogous structures like flippers of Penguins and Dolphins are formed as a result of:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Convergent evolution
Option (3) Convergent evolution — Correct. Flippers of penguins (birds) and dolphins (mammals) look and work alike but come from different ancestors. Such analogous structures arise when unrelated animals adapt to the same habitat, which is convergent evolution.
NCERT Extract:
What Are the Evidences for Evolution? – “… Wings of butterfly and of birds look alike. They are not anatomically similar structures though they perform similar functions. Hence, analogous structures are a result of convergent evolution - different structures evolving for the same function and hence having similarity.”