Biology · Evolution and Paleontology
In prehistoric flying reptiles known as pterosaurs, the outstretched wings were primarily supported by which elongated anatomical structure?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The elongated radius and ulna bones
- 2The fused clavicle bones
- 3The second and third digits combined
- 4The fourth digit (finger) of the hand✓
Correct answer
The fourth digit (finger) of the hand
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