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The highest level of organization that consists of all organ systems of the body is organismal.
They are at the organ-system level of organization
organism describes the entire individual, a human, just like it would describe a fish. However, "in" the human body, one would find SYSTEMS such as the digestive and nervous systems.
The lowest level is the cell.
organ
The fourth level of cell organization is an organ system. The levels of organization are: Cell, Tissue, Organ, Organ system.
Your nervous system control your body by three ways. Firstly it control your body through autonomic nervous system. This happens at subconscious level and you can not appreciate the importance of the role of nervous system in body regulation at this level. Then your nervous system regulate your body via pituitary hormones. This important aspect is also grossly neglected by most of the authors. Then the nervous system coordinates the body system through sensory and motor nervous system.
The autonomic nervous system does. It works at the level of the spinal cord.
Chemical Level(atoms, molecules), Cellular Level(smooth muscle cell), Tissue Level(smooth muscle tissue), Organ Level(stomach), System Level(digestive system), and Organism Level.
Cells are the most basic unit of organization in the body, and the cellular level is the most basic level of organization. Cells joint to for tissues, which form organs, which form organ systems, which form organisms.cell, tissue, organ, organ system, and the organism
Organism > organ system > organ > tissue > cell > chemical level.
Circulatory system