[Campbell Biology P.785] Based on the information provided, what was a distinctive feature o... | Practice Question

Based on the information provided, what was a distinctive feature of pterosaur wings?

  • A: They were structurally identical to the wings of modern birds and bats.
  • B: They consisted of a collagen-strengthened membrane stretched between the trunk or hind leg and a long digit on the foreleg.
  • C: They were primarily used for swimming, not flapping flight.
  • D: Their wingspan rarely exceeded the size of a sparrow.

Explanation

The text explicitly describes pterosaur wings: 'It consisted of a collagen-strengthened membrane that stretched between the trunk or hind leg and a very long digit on the foreleg.' This matches option B. Other options are contradicted by the text.