Question

the subfield of evolutionary studies that focuses on long - term evolutionary changes is
o macroevolution
o microevolution
o modern synthesis
o natural selection

Explanation:

Macroevolution refers to large - scale evolutionary changes over long periods, such as the formation of new species, genera, and higher taxonomic groups. Microevolution is about small - scale changes in allele frequencies within a population over short periods. Modern synthesis combines Darwinian evolution with modern genetics. Natural selection is the mechanism by which organisms better adapted to their environment tend to survive and reproduce.

Answer:

macroevolution