Nematode - Wikipedia
网页Nematodes are a diverse group of animal phylum with over 25,000 species, mostly free-living or parasitic. They inhabit almost every ecosystem on Earth, from marine to terrestrial, and play important roles in many ecosystems.
Nematode | Definition, Description, Diseases, & Facts
网页2024年7月25日 · Nematodes are worms of the phylum Nematoda, among the most abundant animals on Earth. They can be parasitic or free-living, and some cause diseases in humans and animals. Learn more about their features, diversity, and ecological roles.
Nematodes: Classification, Structure, and Characteristics
网页Learn about the diversity, evolution, and anatomy of nematodes, also known as roundworms, a phylum of ancient and abundant microorganisms. Find out how nematodes are classified, what they look like, and how they live as free-living or parasitic organisms.
Nematodes - Cornell University
网页Nematodes are simple roundworms. Colorless, unsegmented, and lacking appendages, nematodes may be free-living, predaceous, or parasitic. Many of the parasitic species cause important diseases of plants, animals, and humans. Other species are beneficial in attacking insect pests, mostly sterilizing or otherwise debilitating their hosts.
What are Nematodes? | Department of Nematology
网页Nematodes are microscopic, transparent worms that live in diverse habitats and feed on bacteria, fungi or other organisms. They are a major component of soil and sediment ecosystems and some are parasites of humans, livestock or crops. Learn more about nematodes and their role in Nematology.
What Are Nematodes? - Treehugger
网页2021年9月18日 · Learn about the different types of nematodes, the tiny worm-like animals that live in soil and water. Find out how to prevent and control plant-parasitic nematodes that damage vegetable roots,...
Nematodes - Phylum Nematoda - Examples, Classification/Characteristics
网页Learn about nematodes, also known as roundworms, a group of worms that belong to the phylum Nematoda. Find out their definition, examples, characteristics, and classes, including parasitic and free-living nematodes.
What is a Nematode? - University of Nebraska–Lincoln
网页Nematodes are microscopic worms that are the most numerous multicellular animals on earth. Learn about their body structure, digestive system, and how they are classified in the phylum Nemata or Nematoda.
Nematodes - PMC - National Center for Biotechnology Information
网页2013年10月7日 · 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.
Nematode Definition & Meaning - Merriam-Webster
网页The meaning of NEMATODE is any of a phylum (Nematoda or Nemata) of elongated cylindrical worms parasitic in animals or plants or free-living in soil or water —called also roundworm.