What does louis pasteur mean with “the role of the infinitely small in nature is infinitely large?

He meant the micro-organisms (microbes) are very small living organisms but plays an important role in maintaining  life on earth. Microbes fix gases and break down animal matter and dead plants into simpler substances that are used at the beginning of the food chain.  Pasteur shows that vaccines against infectious diseases can be manufactured.

Writing, you can revisit previous parts of the lesson by returning to the course map. be sure to refer to the lab’s student guide, which you can find on the first page of the lab experiment activity

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