ANATOMY

Detailed explanation-1: -Some evolutionary changes do not create new species, but result in changes at the population level. Most evolutionary changes are small and do not lead to the creation of a new species. When populations change in small ways over time, the process is called microevolution.

Detailed explanation-2: -Microevolution happens on a small scale (within a single population), while macroevolution happens on a scale that transcends the boundaries of a single species.

Detailed explanation-3: -Small-scale evolution or microevolution concerns evolution at the intra-specific level or between closely related species. At the intra-specific level, it allows the analysis of the evolutionary forces at work: mutation, genetic drift, migration and selection.

Detailed explanation-4: -Microevolution vs Macroevolution A change that occurs in a population due to changes in allelic frequencies is known as microevolution. Large-scale and visible changes that occur above the level of species are known as macroevolution. The change occurs at an intraspecific level.

Detailed explanation-5: -Microevolution is simply a change in gene frequency within a population. Evolution at this scale can be observed over short periods of time-for example, between one generation and the next, the frequency of a gene for brown coloration in a population of beetles increases.