Rhabditida
Rhabditida
Rhabditida (pronounced: rhab-di-ti-da) is a large order of nematodes, commonly known as roundworms. This order includes several species that are parasitic to humans and other animals, as well as free-living species that are important in soil ecosystems.
Etymology
The term "Rhabditida" is derived from the Greek word "rhabdos", which means rod. This is in reference to the rod-like shape of these worms.
Description
Rhabditida are small, cylindrical worms that are typically less than 1 mm in length. They have a simple body plan with a mouth, a gut, and an anus. The body is covered by a tough cuticle, which protects the worm from the environment and helps it to retain moisture.
Life Cycle
The life cycle of Rhabditida involves several stages, including egg, four juvenile stages, and adult. The worms reproduce sexually, and the females lay eggs that are often encased in a protective shell.
Ecology
Rhabditida are found in a wide range of environments, from soil to freshwater to marine environments. They play important roles in these ecosystems, including decomposition and nutrient cycling.
Medical Importance
Some species of Rhabditida are parasitic and can cause diseases in humans and other animals. For example, the species Strongyloides stercoralis is a human parasite that can cause strongyloidiasis, a disease characterized by abdominal pain, diarrhea, and weight loss.
Related Terms
External links
- Medical encyclopedia article on Rhabditida
- Wikipedia's article - Rhabditida
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