Microbes are beautiful. I am not much of an expert on protozoa but I’ve seen a lot of these little guys under the microscope in soil samples. Protozoa are single celled but eukaryotic microbes, which basically means they are distinguished from other single celled microbes by their complex internal structure and generally larger size. Protozoa are an important indicator of soil fertility and, by consuming smaller bacteria and excreting nutrients, play an important role in delivering nutrients to plant roots in a complex process known as the microbial loop.
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