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A coral "group" is a colony of very many genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in height. A set of tentacles surround a central mouth opening. Each polyp excretes an exoskeleton near the base.
Etymology ( / ˌɛtɪˈmɒlədʒi /, ET-im-OL-ə-jee [1]) is the scientific study of the origin and evolution of a word's semantic meaning across time, including its constituent morphemes and phonemes. [2] [3] It is a subfield of historical linguistics, philology, and semiotics, and draws upon comparative semantics, morphology, pragmatics, and ...
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. [1] Most coral reefs are built from stony corals, whose polyps cluster in groups. Coral belongs to the class Anthozoa in the animal phylum Cnidaria, which includes sea anemones and ...
Coral Triangle. The Coral Triangle ( CT) is a roughly triangular area in the tropical waters around the Philippines, Indonesia, Malaysia, Papua New Guinea, the Solomon Islands and Timor-Leste. This area contains at least 500 species of reef-building corals in each ecoregion. [3] The Coral Triangle is located between the Pacific and Indian ...
Origins and styles. A cornicello is a twisted horn-shaped charm often made of gold, silver, plastic, bone, terracotta, or red coral. [1] Cornicelli are thought to be modeled after an eland horn, to represent fertility, virility, and strength. [2] The shape and colour of the red cornicelli are reminiscent of a chili pepper. [3]
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Coral bleaching is the process when corals become white due to loss of symbiotic algae and photosynthetic pigments. This loss of pigment can be caused by various stressors, such as changes in temperature, light, or nutrients. [1] [2] Bleaching occurs when coral polyps expel the zooxanthellae ( dinoflagellates that are commonly referred to as ...
Coral reef restoration strategies use natural and anthropogenic processes to restore damaged coral reefs. [1] Reefs suffer damage from a number of natural and man-made causes, and efforts are being made to rectify the damage and restore the reefs. This involves the fragmentation of mature corals, the placing of the living fragments on lines or ...
A coral island in Maldives. A coral island is a type of island formed from coral detritus and associated organic material. [1] It occurs in tropical and sub-tropical areas, typically as part of a coral reef which has grown to cover a far larger area under the sea. The term low island can be used to distinguish such islands from high islands ...
Coral is a feminine given name derived from the precious coral used to make jewelry. The name is ultimately derived from the Greek word korallion [1] and the Latin coralium. The name came into fashion in the Anglosphere in the late 1800s along with other gemstone names for girls. [2]