Question

salamanders of the genus ambystoma in northern eastern northeastern north america are an entirely female population that reproduces sexually through the process of cloning. however, they have developed a way of inserting dna from other species of salamanders into their own dna.
how has dna from other salamander species helped these ambystoma salamanders survive environmental changes over the past 6 million years?
by decreasing the mutations that occur in the dna
by increasing genetic diversity in the population
by making the dna more similar across the population
by creating many genetically identical individuals

Explanation:

Genetic diversity helps populations adapt to environmental changes. Inserting DNA from other species increases genetic diversity in the Ambystoma salamander population, allowing for a greater chance of having traits suitable for survival in changing environments.

Answer:

By increasing genetic diversity in the population