Question 36

From Biology HL Paper 1 (May 2024, TZ2)

  1. Clutch size is the number of eggs produced by a female bird at one time. Clutch size varies within a population of American robins (Turdus migratorius). It is a phenotypic trait that correlates with the number of successful hatches and shows stabilizing selection.
    What can be deduced about the frequency of different clutch sizes in American robin populations?

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