Question

during drought years on the galapagos,small easily eaten seeds become rare, leaving mostly large, hard-cased seeds that only birds with large beaks can eat. if drought continues for several years, measurable changes to the beak size of the galapagos bird population can be observed. which of the following identifies the changes to the beak size of the galapagos bird population what would most likely be expected as a result of natural selection? a) more small-beaked birds dying than larger beaked birds. the offspring produced in later generations have a higher percentage of birds with large beaks. b) small birds gaining larger beaks by exercising their mouth parts c) small birds mutating their beak genes resulting in later-generation offspring having larger beaks d) small birds anticipating the long drought and eating more to gain weight, resulting in them growing larger beaks

Answer 1

A.

Step-by-step explanation:

Considering that the seeds have changed to where larger birds can only consume them (or birds with larger beaks, anyways..) then smaller beaked birds would die or as a result of the changing in the food supply.If the food supply revolves around having a stronger or larger beak, then birds with larger beaks are more likely to flourish.

Answer 2

A) More small-beaked birds dying than larger beaked birds

Step-by-step explanation:

Natural selection will cause the small-beaked birds to die, while large-beaked birds will begin producing more birds with that gene. This causes large-beaked birds to become dominant, and less and less small-beaked birds will survive.

Hope this helps!