Coelenterata: meaning, definitions and examples

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Coelenterata

[siːlɛnˈtɛərətə ]

Definition

^{Context #1 | Noun}

biology classification

Coelenterata is a phylum of simple, aquatic invertebrates that includes cnidarians like jellyfish, corals, and hydras. These organisms are characterized by their gelatinous bodies and a single body cavity, which serves as both mouth and anus. They exhibit various forms and behaviors, typically being aquatic and often possessing specialized cells called cnidocytes for capturing prey.

Synonyms

cnidarians, corals, jellyfish.

Examples of usage

The coelenterata, such as jellyfish, can be found in oceans worldwide.
Many coelenterata species have symbiotic relationships with marine algae.
Coelenterata exhibit a range of body forms from polyps to medusas.

Interesting Facts

Etymology

The term comes from the Greek words 'koilos' meaning 'hollow' and 'enteron' meaning 'intestine', reflecting their body structure.
Originally named 'Coelenterata', this classification has been largely replaced by 'Cnidaria' in modern biology.

Biology

These creatures are known for having stinging cells called nematocysts, which they use to capture prey.
Many species reproduce both sexually and asexually, allowing for diverse population dynamics.
They have a simple body plan with two main layers, the epidermis and gastrodermis, and a central digestive cavity.

Ecology

Coelenterates play crucial roles in marine ecosystems, particularly as coral reefs that provide habitat for numerous fish species.
Jellyfish populations can explode under certain oceanic conditions, impacting local marine biodiversity.
These organisms are indicators of water quality and health, with their presence often reflecting the state of marine environments.

Cultural Significance

In some cultures, jellyfish are considered delicacies, especially in Asian cuisines.
Myriad folk stories depict jellyfish as mystical beings, influencing maritime lore and navigation in ancient times.

Scientific Research

Studies of coelenterates have provided insights into basic biological processes due to their simple structures.
Certain species produce bioluminescent light, leading to research in biotechnology and environmental monitoring.