Final answer:
The sequence of anatomical organization from higher to lower complexity includes the organism, organ systems, organs, tissues, cells, and chemical levels, with each level building upon the previous one.
Step-by-step explanation:
The human body is a complex system that is organized at different levels of structure. Starting from the least complex to the most complex, the levels of anatomical organization are as follows:
Chemical level - includes subatomic particles, atoms, and molecules such as DNA and proteins.
Cellular level - consists of cells, which are the basic structural and functional units of life.
Tissue level - a group of cells that work together to perform a specific function.
Organ level - composed of two or more types of tissues that work together to perform a specific function.
Organ system level - a group of organs that work together to perform a complex function.
Organismal level - an individual living organism, which is the sum of all its organ systems.
Each level of organization builds upon the previous level to increase complexity and functionality. For example, cells are organized into tissues, and tissues form organs, which then are organized into organ systems such as the skeletal and muscular systems,