Biology Evolution KMU 2024
PMDC Verified Question 10 of 47
Wings of birds and that of flying lizards provide evidence of:
A
Convergent evolution
B
Divergent evolution
C
No evolution
D
Same origin
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Convergent evolution
Concept:

When distinct lineages face identical environmental challenges, they often arrive at similar engineering solutions independently.

Solution:

  • Birds and flying lizards (like the Draco lizard) are not closely related evolutionary groups.
  • The wings of a bird are modified forelimbs with feathers. The "wings" of a flying lizard are usually elongated rib bones covered in a membrane of skin.
  • Because they evolved from completely different anatomical structures to solve the same problem (gliding/flight), this represents Convergent evolution resulting in analogous structures.


Why other options are incorrect:

  • Divergent evolution / Same origin: This would produce homologous structures (like a human arm and a bird wing), where the base anatomy is identical but the function might differ.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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