The embryos of many kinds of animals have gills slits. Gill slits developed into gills in fish and into ears of mammals. Relating in thinking there are ancestors.
Intelligence goes in the blank.<span />
That would be a, chemical to mechanical
Answer:
Less biological relevant model and reduce cell to cell interaction.
Explanation:
The two main disadvantages of a 2D model of the digestive system is that it is less biological relevant model and reduce cell to cell interaction. The 2D model does not show high resemblance to reality and this model also fail to show the interactions of two cell surfaces with each other. In short, this model, does not give us complete knowledge about any biological system.