Nematodes, also known as roundworms, are a diverse group of organisms belonging to the phylum Nematoda.

They are small and cylindrical in shape, with elongated bodies and sometimes have appendages in the form of hooks or stylets. Nematodes are found in a wide variety of environments, from soils and freshwater to oceans.

Some are parasites of plants, animals, and even humans, while others are free-living. Nematodes play an important role in ecosystems, participating in the decomposition of organic matter and serving as prey for other organisms.

What Are Nematodes