NEMATODES Meaning and
Definition
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Nematodes, also known as roundworms, are a diverse group of worms belonging to the phylum Nematoda. They are characterized by their long, slender bodies that taper at both ends and their unsegmented nature. Nematodes can be found in almost every habitat on Earth, including soil, freshwater, and marine environments. They play significant roles in various ecosystems as decomposers, predators, and parasites.
These organisms are incredibly abundant and have a significant impact on the health and stability of ecosystems. They have a simple body structure, lacking a circulatory or respiratory system. Instead, nematodes rely on diffusion to obtain oxygen and nutrients.
Nematodes exhibit remarkable genetic diversity, and their sizes range from microscopic to several meters long. They can survive in a wide range of environments, including extreme conditions such as deep underground, high altitudes, and even frozen soils.
While many nematodes are free-living, some are parasitic, causing diseases in animals, plants, and humans. They can infect various organs and tissues, leading to considerable damage. For instance, certain nematodes can cause intestinal illnesses in humans or affect crop yields by damaging the roots.
Due to their ecological importance and potential agricultural implications, nematodes have been extensively studied. Their biology, physiology, and genetics are well-documented fields of research. Nematodes are also used as model organisms in labs to study various biological processes.
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Etymology of NEMATODES
The word "nematodes" has its etymology rooted in the Greek language. It is derived from the Greek words "nema" meaning "thread", and "odos" meaning "path" or "way". Thus, "nematodes" literally translates to "threadlike path" or "threadlike way", which is a fitting description of the slender, elongated shape of nematodes.
Similar spelling words for NEMATODES
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