A small number of birds arrive on an island from a neighboring larger island.This small population begins to adapt to the new food plants available on the island,and their beaks begin to change.About twice a year,one or two more birds from the neighboring island arrive.What effect do these new arrivals have?
A)Their arrival speeds the process of speciation.
B)Their arrival tends to promote adaptation to the new food plants.
C)Their arrival tends to retard adaptation to the new food plants.
D)Their arrival represents a colonizing event.

Question

Quizplus · Accepted Answer

The arrival of new birds from the neighboring island introduces genetic material from the original population, which can slow down the adaptation process to the new environment by introducing traits that are not suited to the new food plants.

A Small Number of Birds Arrive on an Island from a Neighboring