At the beginning of a research project on egg laying in seagulls,a researcher noted that the birds laid an average of 7-9 eggs per clutch.After studying the population for 15 generations,the researcher noted that the birds were now laying 3-4 eggs per clutch.What type of natural selection is occurring in the population of gulls?
A)stabilizing
B)directional
C)disruptive
D)There is no selection occurring in this population.

Question

Quizplus · Accepted Answer

Directional selection is occurring as the average number of eggs laid per clutch has shifted from 7-9 to 3-4, indicating a change in the population's traits over generations.

At the Beginning of a Research Project on Egg Laying