Three models of biology

1Physical model refers to the physical or pictorial form of visual expression of the characteristics of the object of knowledge model, physical models include both static structural models, such as the three-dimensional structure of eukaryotic cells model, the flow of the cell membrane mosaic model, etc.; and dynamic process models, such as textbooks in the hands of the students to build the model of the chromosome changes in meiosis, the model of the regulation of glucose, etc.

2. Mathematical models refers to the mathematical form used to describe a system or its nature, such as exploring the changes in the number of yeast populations in the culture medium of the experiment

3 conceptual model refers to the textual expression to abstract the essential features of the model, such as the structure of eukaryotic cells **** the same characteristics of the textual description of the process of photosynthesis of material and energy changes in the explanation of the doctrine of Darwin's interpretation of natural selection models, etc.;