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On an island, finches that fed on large, hard seeds had large beaks. Finches with small beaks fed on small, soft seeds. Fossils indicate centuries ago they all had medium beaks. This is an example of evolution.
A drought changed the vegetation on the island. After this period, the number of seeds declined. The decrease in small, soft seeds was greater than the decrease in large, hard seeds. We can expect the population of birds with __ beaks to increase. This trait will be passed on through the process of __ __ .
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On an island, finches that fed on large, hard seeds had large beaks. Fi...
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