Nematodes
Nematodes or roundworms constitute the phylum Nematoda, with over 25,000 different described species, making them one of the most diverse groups in the animal kingdom. They are a diverse animal phylum inhabiting a broad range of environments.
Taxonomy[edit | edit source]
Nematodes are classified into the kingdom Animalia, the phylum Nematoda, and the class Chromadorea or Enoplea, depending on the species.
Anatomy[edit | edit source]
Nematodes' bodies are covered in a tough outer layer called a cuticle. They have a simple structure with a hollow gut running from the mouth to the anus, and a nerve ring around the pharynx.
Life Cycle[edit | edit source]
The life cycle of a nematode includes six stages: an egg stage, four juvenile stages, and an adult stage. The duration of each stage can vary depending on the species and environmental conditions.
Ecology[edit | edit source]
Nematodes play crucial roles in the ecosystem, including decomposition and nutrient cycling. Some species are parasitic, infecting humans, animals, and plants.
Human Health[edit | edit source]
Some nematodes, such as the hookworm and the pinworm, are parasitic and can cause diseases in humans. Others, like the Caenorhabditis elegans, are used in scientific research.
Agriculture[edit | edit source]
Nematodes can have a significant impact on agriculture. Some species are beneficial, aiding in nutrient cycling, while others are harmful, causing crop diseases.
See Also[edit | edit source]
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Contributors: Prab R. Tumpati, MD