What is what does descending means?

Descending means moving or going from a higher to a lower position, level, or rank. It can refer to a physical movement, such as going down stairs or descending a mountain, or a change in numerical values, such as a descending order of numbers from highest to lowest. In music, it can refer to a sequence of notes played in a lower pitch than the preceding sequence. In biology, it can refer to a species that is moving towards extinction or a gene trait that is seen less frequently in a population over time.