Abat wing an alligator leg, and a human arm and homologous structures. how does the presence of a homolous structures support one aspect of the theory of evolution?

Homology in bat wings, alligator leg, and a human arm represents their divergent evolution from common ancestor.

Explanation:

Homologous organs share a common basic structure but are adapted to perform different functions according to the need of organisms. Wings of bats (flying mammal), leg of alligator (reptile) and human (terrestrial mammal) arm share common basic developmental plan but are adapted to serve in flight, movement and holding things respectively.

Presence of homologous organs in these organisms from different group represents their evolution from a common ancestor. This means that bats, human, and alligators should have a common ancestor. Divergent evolution of the descends from the common ancestor must have given rise to homologous structures.

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.