Question

На каком этапе исторического развития человека прекратила своё действие движущая форма естественного отбора? Ответ аргументируйте.

Answer 1

На этапе появления вида Homo sapiens. Эволюция человека вышла из-под ведущего контроля биологических факторов и приобрела социальный характер. Общественный характер труда позволил человеку выделиться из природы, создать для себя искусственную среду обитания

Answer 2

The Stage at Which the Driving Force of Natural Selection Ceased to Operate in Human History

The driving force of natural selection, which is the process by which certain traits become more or less common in a population over time, has been a significant factor in shaping the evolution of species, including humans. However, it is important to note that the impact of natural selection on human evolution has diminished significantly in recent history due to various factors.

During the stage of cultural evolution, which began with the development of complex societies and the emergence of agriculture, the influence of natural selection on human populations started to decline. This stage is characterized by the ability of humans to modify their environment and adapt to it through cultural practices, such as agriculture, technology, and social organization.

Agriculture, which emerged around 10,000 years ago, played a crucial role in reducing the selective pressures on humans. With the development of agriculture, humans were able to produce a stable food supply, which led to population growth and the establishment of permanent settlements. This shift from a nomadic lifestyle to a sedentary one reduced the need for physical adaptations to survive in different environments.

Technological advancements further reduced the impact of natural selection on human populations. Tools, clothing, and shelter allowed humans to adapt to various environments without relying solely on genetic adaptations. The ability to manipulate the environment and create artificial selection pressures through technology and cultural practices has allowed humans to overcome many of the challenges that natural selection would have otherwise addressed.

Medical advancements have also played a significant role in reducing the impact of natural selection on human populations. The development of vaccines, antibiotics, and other medical interventions has increased the survival rates of individuals with genetic conditions that would have otherwise been detrimental to their reproductive success. This has led to a decrease in the selective pressures associated with certain genetic traits.

In summary, the stage at which the driving force of natural selection ceased to have a significant impact on human populations can be identified as the stage of cultural evolution, characterized by the development of agriculture, technological advancements, and medical interventions. These factors have allowed humans to modify their environment and adapt to it through cultural practices, reducing the selective pressures on genetic traits.