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The nematodes ( / ˈnɛmətoʊdz / NEM-ə-tohdz or NEEM-; Greek: Νηματώδη; Latin: Nematoda ), roundworms or eelworms constitute the phylum Nematoda. [3] [4] They are a diverse animal phylum inhabiting a broad range of environments. Most species are free-living, feeding on microorganisms, but there are many that are parasitic. [3] .
May 30, 2024 · Nematodes are among the most abundant animals on Earth. They occur as parasites in animals and plants or as free-living forms in soil, fresh water, marine environments, and even such unusual places as vinegar. Learn more about nematodes, including the diseases they cause.
Jul 1, 2018 · What Are Nematodes? Often referred to as roundworms, nematodes are not closely related to true worms. They are multicellular insects with smooth, unsegmented bodies. The nematode species that...
Nematodes are a diverse group of worms that make up the phylum Nematoda. Otherwise known as roundworms, nematodes live as either free-living organisms in terrestrial and aquatic organisms or as parasites in plants and animals.
Nematodes have been reported from every continent on earth and occur in deserts, swamps, the oceans, the tropics and Antarctica. Usually nematodes are invisible to all but a few specialists because most are microscopic and transparent.
Oct 7, 2013 · What is a nematode? True to their name, nematodes generally have a body that is long, narrow and threadlike ( ‘nema’ is Greek for thread), but not segmented like that of earthworms.
Oct 31, 2023 · Key Points. Nematodes are in the same phylogenetic grouping as the arthropods because of the presence of an external cuticle that protects the animal and keeps it from drying out. There are an estimated 28,000 species of nematodes, with approximately 16,000 of them being parasitic.
roundworms. By Phil Myers. Roundworms (nematodes) are bilaterally symmetrical, worm-like organisms that are surrounded by a strong, flexible noncellular layer called a cuticle. Their body plan is simple. The cuticle is secreted by and covers a layer of epidermal cells.
There are thousands of nematodes. Not only are there more than 15,000 known species of roundworms, but there are many thousands of individual nematodes in even a single handful of garden soil. And they keep coming!
Feb 23, 2015 · Nematode infections in humans include ascariasis, trichuriasis, hookworm, enterobiasis, strongyloidiasis, filariasis, and trichinosis, among others. The phylum Nematoda, also known as the...
