a population of birds lives on a small island. another population of the same species lives on the mainland…

a population of birds lives on a small island. another population of the same species lives on the mainland. the distance between the island and the mainland is too great for birds to fly back and forth. recently, a series of sandbars and tiny islands have formed between the island and the mainland.\nwhat is the most likely effect of this?\n○ an increase in mutations in both bird populations\n○ an increase in gene flow between the bird populations\n○ an increase in genetic drift between the bird populations\n○ an increase in mutations in the island population

a population of birds lives on a small island. another population of the same species lives on the mainland. the distance between the island and the mainland is too great for birds to fly back and forth. recently, a series of sandbars and tiny islands have formed between the island and the mainland.\nwhat is the most likely effect of this?\n○ an increase in mutations in both bird populations\n○ an increase in gene flow between the bird populations\n○ an increase in genetic drift between the bird populations\n○ an increase in mutations in the island population

Answer

Brief Explanations:

Gene flow is the transfer of genetic material from one population to another. The formation of sand - bars and tiny islands provides a new pathway for the bird populations to interact, allowing for the exchange of genes. Mutations are random changes in DNA not directly related to the new land formation. Genetic drift is the change in allele frequencies due to chance events and is not promoted by the new land connection.

Answer:

an increase in gene flow between the bird populations