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In biology, structures and functions occur across a hierarchy of size, extending from molecules to organisms. 

The EBS database uses sixteen hierarchical levels to build a qualitative framework onto which quantitative data can be attached.  Building such an framework is a continuous process.  It starts out as an "ideal" model that acquiesces - over time - to the preferences being expressed in the literature.

Product features:

  • An organ hierarchy.
  • A brain and spinal cord hierarchy.
  • An literature-based hierarchy.