LIFE SCIENCE

Detailed explanation-1: -When populations change in small ways over time, the process is called microevolution. Microevolution results in changes within a species. An example of microevolution is the evolution of mosquitoes that cannot be killed by pesticides, called pesticide-resistant mosquitoes.

Detailed explanation-2: -Genetic Drift The smaller the population, the more susceptible it is to such random changes. This phenomenon is known as genetic drift.

Detailed explanation-3: -Microevolution is the change in allele frequencies that occurs over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift.

Detailed explanation-4: -Building resistance Pesticide resistance, herbicide resistance, and antibiotic resistance are all examples of microevolution by natural selection.

Detailed explanation-5: -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.