Microorganisms are all around us. Some are harmful and we must enforce precautions. Other microorganisms are quite helpful, for instance, the bacteria in our gut help us to digest our food. Microorganisms, such as rhizobium, help plants to fix nitrogen. The bacteria Lactobacillus is another useful microorganism that converts milk to curd. Ideonella sakaiensis is a newly discovered bacteria that have the capability to digest plastic.
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