Urochord meaning

The meaning of urochord is a chordate marine animal characterized by a notochord in its larval stage.


Urochord definitions

Word backwards drohcoru
Part of speech Noun
Syllabic division u-ro-chord
Plural The plural of the word urochord is urochords.
Total letters 8
Vogais (2) u,o
Consonants (4) r,c,h,d

Overview of Urochord

Urochord, also known as tunicates or sea squirts, are marine invertebrates belonging to the phylum Chordata. These fascinating organisms are named for their outer "tunic," which surrounds their soft bodies. Urochordates are considered one of the closest living relatives of vertebrates, making them a crucial group for understanding the evolution of complex animals.

Unique Characteristics of Urochord

One of the remarkable features of urochordates is their larvae, which possess a notochord and nerve cord, similar to vertebrates. However, as they mature into adults, most species lose these structures and develop into filter-feeding organisms. Urochordates also have a unique water propulsion system, where they draw in water through one siphon, filter out food particles, and expel the water through another siphon.

Ecological Importance

Urochordates play a vital role in marine ecosystems as filter feeders, helping to regulate plankton populations and maintain water quality. They are an essential food source for various marine organisms, contributing to the overall biodiversity of oceanic environments. Additionally, their evolutionary relationship to vertebrates sheds light on the transition from simple to more complex body plans in animals.

Threats and Conservation

Despite their ecological significance, urochordates face threats from habitat loss, pollution, and overfishing. Climate change and ocean acidification also pose challenges to their survival. Conservation efforts are being made to protect urochordate populations and their habitats, including marine protected areas and sustainable fishing practices.

Research and Discoveries

Scientists continue to study urochordates to uncover their genetic makeup, developmental processes, and evolutionary history. Recent research has revealed insights into the unique immune system of these organisms, as well as their regenerative abilities. These discoveries not only enhance our understanding of urochordates but also provide valuable information for medical and biotechnological applications.


Urochord Examples

  1. The urochord plays a crucial role in the anatomy of tunicates.
  2. Scientists study the urochord to understand the evolutionary history of chordates.
  3. The urochord is a distinguishing feature of the larval stage of some marine organisms.
  4. The development of the urochord is an important topic in developmental biology.
  5. Researchers use the urochord to investigate gene expression patterns in tunicates.
  6. The urochord provides structural support for the bodies of certain marine invertebrates.
  7. The urochord is composed of a cellulose-like substance called tunicin.
  8. The presence of a urochord can help identify different species of sea squirts.
  9. Some species of tunicates have a transparent urochord that allows for easy observation of internal structures.
  10. The urochord plays a role in filtering food particles from water in some marine organisms.


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  • Updated 11/04/2024 - 09:24:32