Final answer:
Divergence is an evolutionary process in biology where two recently isolated populations become more distinct and different over time.
Step-by-step explanation:
Divergence is a concept in biology that signifies the evolutionary process where two recently isolated populations become more distinct and different over time. When populations become geographically discontinuous due to barriers like mountains or rivers, they are able to evolve along different trajectories. This results in the gradual divergence of their allele frequencies at numerous genetic loci, leading to distinct genetic and phenotypic differences.