LIFE SCIENCE

Detailed explanation-1: -Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics. The demands of a different environment or the characteristics of the members of the new group will differentiate the new species from their ancestors.

Detailed explanation-2: -Sympatric speciation is distinctive as it occurs when two populations of the same species are found in the same territory but are able to split into two different groups and genetically develop so differently that they can no more interbreed and become different species.

Detailed explanation-3: -So, while allele frequencies are almost certain to change in each generation, the amount of change due to sampling error decreases as the population size increases. Perhaps the most important point is that the direction of the change is unpredictable; allele frequencies will randomly increase and decrease over time.

Detailed explanation-4: -New species arise through a process called speciation. In speciation, an ancestral species splits into two or more descendant species that are genetically different from one another and can no longer interbreed.