In cameroon, seedcrackers have either small bills (adapted for feeding on soft sedge seeds) or large bills (adapted for feeding on hard sedge seeds). during competition for scarce resources, these birds primarily feed on the seeds for which they are best adapted. this is an example of selection. a. stabilizingb. disruptivec. frequentd. directionale. mutationa

b. disruptive

Explanation:

During extreme changes in the environmental conditions, natural selection favors the two or more extreme phenotypes due to their adaptive nature. During this, the organisms with intermediate phenotype are not favored. This type of natural selection is called disruptive selection. In the given example, Cameroons having large and small bills are favored which in turn are the two extreme phenotypes. Therefore, it represents an example of disruptive selection.

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