An analogy is often drawn between the study of economics and the study of life sciences, where the economy is compared to a complex organism. In this comparison, the study of individual economic agents (like households or firms) is likened to studying individual cells, while the study of the overall economy (including topics like national output and inflation) is likened to studying the entire organism. Critically evaluate this analogy. What are its main strengths in helping to understand the different scales of economic analysis, and what are its potential limitations or weaknesses?