Biological model

A biological model is an organism or system representing a more complex biological entity. It may refer to:

• a model organism, a non-human species that is extensively studied to understand particular biological phenomena present in many related organisms
• an in vitro model system, representing complex in vivo systems
• a mathematical model of a biological system, e.g.,
  • the biological neuron model, a mathematical description of the properties of certain cells in the nervous system
• a scientific model of a biological system, e.g.
  • the fluid mosaic model
• Models of abnormality#The biological (medical) model, the only model of psychological abnormalities not based on psychological principles