What is the correct hierarchy of the structure of the human body from largest to smallest?

The hierarchy of the structure of the human body starts at the largest level with the organism and progresses to the smallest components, which are molecules and atoms. The correct order is important for understanding how biological systems work.

The largest level is the organism, which refers to the complete living being. Next in the hierarchy are organ systems, which are groups of organs that perform complex functions necessary for life. Following organ systems, there are individual organs, which are made up of different types of tissues that work together to perform specific tasks. Those tissues are composed of cells, which are the basic units of life.

Cells themselves are made up of molecules, which are formed from atoms—the smallest units of matter. By recognizing this hierarchy, one can appreciate how each level is interconnected, providing a foundation for understanding biological processes at both macro and microscopic levels.

This sequence illustrates how complexity increases as you descend from the organism level down to atoms.