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A bird species X is restricted to Narcondam island (NI) in Andaman and bird species Y is restricted to Middle Andaman Islands (MAI). NI has an area of 8 ~km ^2 and MAI has an area of 1500 ~km ^2 . Based on the fossil record, a researcher found a common ancestor of species X and Y in Myanmar, which had a long and pointed beak. Almost all members of the population of species X have a long and pointed beak that is speci

Options

  1. ASpecies X has undergone directional selection in NI.
  2. BSpecies Y has undergone directional selection in MAI.
  3. CSpecies Y has undergone stabilizing selection in MAI.
  4. DSpecies X has undergone stabilizing selection in NI.

Correct answer

D. Species X has undergone stabilizing selection in NI.

Step-by-step solution

No solution available.

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