DICYEMATA Meaning and
Definition
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Dicyemata is a term used in biology to refer to a group of simple, microscopic organisms known as mesozoans. These organisms are cylindrical or flask-shaped, and they are typically found in the kidneys or other tissues of cephalopod mollusks. The word "Dicyemata" is derived from the Greek words "dis," meaning two, and "kyema," meaning swelling or cyst.
Mesozoans are considered to be one of the simplest multicellular animals. They lack organs or body systems typically found in more complex organisms. Instead, their body is divided into two main regions: the calotte, which is a compact mass containing reproductive cells, and the axial cell, which is involved in attachment to the host's tissues.
Dicyemata have a specialized lifecycle that involves two distinct morphological forms. The first form, known as an infusoriform larva, is ciliated and free-swimming. It is responsible for dispersal and finding a suitable host. Once inside the host, the infusoriform larva undergoes metamorphosis into the second form, called the vermiform adult. The vermiform adult lacks cilia and is responsible for reproduction.
Despite their simple structure, Dicyemata have a fascinating evolutionary history and have been the subject of considerable research. They provide valuable insights into the evolution of multicellularity and the diversification of animal life. Furthermore, their unique association with cephalopod mollusks highlights the complexity of ecological interactions between different species within ecosystems.
Common Misspellings for DICYEMATA
- sicyemata
- xicyemata
- cicyemata
- ficyemata
- ricyemata
- eicyemata
- ducyemata
- djcyemata
- dkcyemata
- docyemata
- d9cyemata
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- dicgemata
- diucyemata
- Dicqemata
Etymology of DICYEMATA
The word "Dicyemata" is derived from the Greek word "dikyēma" (δίκυημα), which means "double thread" or "two threads". The term was coined by the German biologist Heinrich Greeff in 1864 to describe a group of tiny, parasitic organisms known as dicyemids. Dicyemids are named for their characteristic shape, consisting of a long, thin body with two main threads or tubes. These organisms were first discovered and studied in the kidneys of octopuses, hence the name "Dicyemata".
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