Natural disasters because they are all natural
Answer: The utilization of different resources requires different adaptations, selecting for different traits.
Explanation:
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Birds with larger beaks were better able to utilize the large seeds.
DNA analysis shows that their DNA is almost identical with only minor changes.
The diversity in environments on each island provides many opportunities to study how related organisms have adapted over time.
Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment.
