Structural Hierarchy Levels

The human organized structure or level

All chemical elements and compounds (along with their atomic configuration and bonding) essential for maintaining life.

1. Basic structure and functional unit of the organism

2. Organisms "building block" with a wide variety of shapes and features

3. Cells combine to form tissues

1. Tissues combine to form organs

2. Group of similar cells that together with inter-cellular material (matrix) have a similar origin and perform a specialized function

A structure composed of two or more different tissues

Having a specific function and a recognizable shape like your heart or liver. Organs combine to form an organ system

Association pf organs that provides a higher integrated function

Example: Digestive System.