Why selection is considered both a process and a science. How are cultural forms of organisms different from their wild ancestors?

Science because it is studying methods of breeding new and improving existing varieties of agricultural plants, breeds of domestic animals and strains of microorganisms. The process, because the creation of cultural forms of organisms.
Cultivated plants differ from wild ancestors in a significantly greater variety of hereditary variability, high productivity, the properties of which were not found in wild ancestors or improved properties.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.