Question

Which of the following statements are correct? I) Homologous organs have the same structure but show different functions.
II) Homologous organs have common ancestors.
III) Analogous organs show divergent evolution.
IV) Wings of butterfly and birds are homologous.

• A. I, II and IV are correct
• B. I and II are correct
• C. II, III and IV are correct
• D. Only I and IV are correct

Hint:

\[ \boxed{\text{Homologous → same origin, different function}} \] \[ \boxed{\text{Analogous → different origin, same function}} \]

Answer 1

The Correct Option is B

Concept: Homologous organs share common ancestry but perform different functions, while analogous organs perform similar functions but have different origins.

Step 1: Check statements.

• I → Correct (same origin, different function)

• II → Correct (common ancestry)

• III → Incorrect (analogous organs show convergent evolution, not divergent)

• IV → Incorrect (bird and butterfly wings are analogous)

Step 2: Select correct combination.
Only I and II are correct. \[ \boxed{\textbf{Option (B)}} \]