Answer:
C. change over time
Explanation:
Biological evolution is the process by which life originated on Earth, and which has given rise to the enormous diversity of living beings that populate our planet.
The theory of evolution, as it is known today, was developed by Charles Darwin. Although some scientists of his time already accepted the idea that living beings change over time, and that there are different degrees of kinship between species. However, most believed in the divine plan, that is, that everything, including the process of evolution, followed a plan set by God.
Darwin collected an enormous amount of examples and data supporting evolution over the years, and his main contribution was to propose natural selection as the engine of evolutionary change. In other words, species change over time because only the fittest individuals are able to produce offspring.
The characteristics which make some individuals more suitable than others are different depending on the environment in which they develop, and so, generation after generation, species evolve to adapt to the environment. Many people today accept evolution by natural selection. However, by the time of Darwin (in the 19th century), this theory represented a complete revolution against the religious thinking that was prevalent at that time, since explaining evolution through natural selection no longer required the intervention of God.
For many, this meant accepting the free will of species, including humans, and Darwin found some opposition to his theory, even among the scientific community.
