Discussion
Darwin's finches, which have adapted to different Galapaqos islands have different bill sizes, shapes colouration and body size. This is an example of :
Answer: D
Darwin's finches are an example of Adaptive radiation.
A single ancestral finch species from the South American mainland colonised the Galapagos and diversified into more than a dozen species. On different islands and in different niches, beaks evolved for crushing seeds, probing cactus flowers, catching insects or using tools. The rapid divergence of one lineage into many forms adapted to different ways of life is adaptive radiation.
Homology is shared structure inherited from a common ancestor and does not by itself describe diversification. Convergence is the evolution of similar traits in unrelated lineages, and parallelism similar changes in related but separate lineages; here one lineage has diverged, which is the opposite pattern.
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