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The evolution occurring at a genetic level is called
A. Macroevolution
B. Mega evolution
C. Inorganic evolution
D. Microevolution

Answer
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Hint: The species-level or genetic level evolutions takes very little time to take place. It can include migration, mutation, genetic drift.
These are microevolutionary forces that act on the species level.

Complete answer: Genetic level evolution means evolution that takes place on a very small level and in a very short time.
Evolutionary change that occurs over relatively short periods of time by the influence of microevolutionary forces like mutation, genetic drift, migration, etc. within a population is known as microevolution.
Microevolution is a combination of evolutionary theory with Mendelian genetics.

Additional information: Macroevolution can be defined as an evolution of groups that is larger than an individual species. It incorporates the grandest drifts and transformations in evolution. The origin of mammals and the radiation of flowering plants are examples of macroevolution.

So, the correct answer is option D. Microevolution.

Note:Mega evolution can be defined as the most dramatic events that occurred in evolution.
Inorganic evolution is defined as the theory of the formation of the Earth.
It does not include the formation of the species of animals that are found on the Earth.