Q: Evolutionary adaptation is evidenced by different shapes of what structures in birds with different food preferences?


Read this paragraph and choose the correct option from the provided answers:

Notice the differences in the species’ beaks in Figure 18.13. Evolution in response to natural selection based on specific food sources in each new habitat led to evolution of a different beak suited to the specific food source. The seed-eating bird has a thicker, stronger beak which is suited to break hard nuts. The nectar-eating birds have long beaks to dip into flowers to reach the nectar. The insect-eating birds have beaks like swords, appropriate for stabbing and impaling insects. Darwin’s finches are another example of adaptive radiation in an archipelago.

 Choices:

- claws

- Stomach

- necks

- beaks


A:
beaks