Nematode | Definition, Description, Diseases, & Facts | Britannica
2024年11月11日 · Nematode, any worm of the phylum Nematoda. 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.
Phylum Nematoda-Characteristics And Classification of …
The organisms belonging to the phylum Nematoda are also known as “roundworms”. There are 28000 species of Nematoda identified till date. They are unsegmented vermiform animals.
Phylum Nematoda- characteristics, classification, examples
2023年8月3日 · Nematodes (Gr., nema thread+ eidos, form) are commonly referred to as non-segmented roundworm, threadworm or pinworm, as distinct from flatworm and higher segmented annelids. They are widely distributed, aquatic or terrestrial, parasitic or free-living.
Nematodes - Phylum Nematoda - Examples, Classification/Characteristics
Commonly known as roundworms, nematodes are a group of worms that make up the phylum Nematoda. With well over 15,000 species identified today, they can be found in different habitats ranging from terrestrial to marine environments.
Nematodes: Classification, Structure, and Characteristics
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.
14.7: Phylum Nematoda - Biology LibreTexts
2022年7月31日 · Phylum Nematoda includes more than 28,000 species with an estimated 16,000 being parasitic in nature. The name Nematoda is derived from the Greek word “Nemos,” which means “thread” and includes roundworms.
28.4B: Phylum Nematoda - Biology LibreTexts
2024年11月23日 · Phylum Nematoda. The Nematoda, similar to most other animal phyla, are triploblastic, possessing an embryonic mesoderm that is sandwiched between the ectoderm and endoderm. They are also bilaterally symmetrical: a longitudinal section will divide them into right and left sides that are symmetrical.
Nematoda Definition and Examples - Biology Online Dictionary
2021年7月21日 · It is the largest and the most common parasitic roundworm in human intestine. Infection occurs after ingesting eggs contained in contaminated food or more commonly, by transmission to the mouth by the hands after contact with contaminated soil. Treatment is with mebendazole or pyrantel pamoate.
Morphology, Classification, Examples - Biology Notes Online
2024年10月1日 · Nematodes are elongated, unsegmented, thread-like worms, found in various environments such as soil and water. They can be free-living or parasitic, affecting plants, animals, and humans. Nematodes, often referred to as roundworms, exhibit distinct morphological and physiological features that set them apart from other organisms.
Nematodes - PMC
This Primer will take a broad look at the diverse groups that make up the phylum Nematoda. 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.
- 某些结果已被删除一些您可能无法访问的结果已被隐去。显示无法访问的结果