Final answer:
Micro-evolutionary change resulting from the differential survivorship or reproduction of individuals with different genotypes is known as selection.
Step-by-step explanation:
Micro-evolutionary change resulting from the differential survivorship or reproduction of individuals with different genotypes is known as selection.
The process of selection, also known as 'survival of the fittest,' leads to evolutionary change by favoring individuals with favorable traits that allow them to survive and reproduce in their environment.
For example, if a population of insects is exposed to a new pesticide, the individuals with genotypes that confer resistance to the pesticide are more likely to survive and pass on their genes to the next generation. Over time, this can lead to a shift in the frequency of pesticide-resistant alleles in the population.