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What is the description of coral reef?

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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. Most coral reefs are built from stony corals, whose polyps cluster in groups.
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What best describes a coral reef?

Coral reefs are large underwater structures composed of the skeletons of colonial marine invertebrates called coral. ... Each individual coral is referred to as a polyp. Coral polyps live on the calcium carbonate exoskeletons of their ancestors, adding their own exoskeleton to the existing coral structure.24 сент. 2018 г.

What do corals look like description?

A coral polyp is shaped like a cylinder, with a mouth at one end, surrounded by tentacles. The arm-like tentacles gather food and sting creatures that threaten the coral. After food is digested, the polyp's waste products exit through the mouth. Coral polyp bodies are usually clear.13 сент. 2019 г.

What is coral reef in simple words?

A coral reef is a large underwater structure made of dead and living corals. In most healthy reefs, stony corals are predominant. They are built from colonial polyps from the phylum Cnidaria which secrete an exoskeleton of calcium carbonate. ... The reef acts as the home of many tropical fish and other animals.

What makes corals unique?

Corals actually comprise an ancient and unique partnership, called symbiosis, that benefits both animal and plant life in the ocean. ... Because of this cycle of growth, death, and regeneration among individual polyps, many coral colonies can live for a very long time.26 февр. 2021 г.
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What is coral used for?

Coral is used as a calcium supplement; to treat multiple sclerosis; and to treat and prevent cancer, heart disease, and other chronic health problems. Surgeons use coral as a foundation for growing new bone in reconstructive surgery, cosmetic facial surgery, and in areas damaged by trauma.

Is coral a mineral?

Although formed hundreds or thousands of years ago, coral is by no means a dead mineral. It is teeming with life and activity. Most coral minerals are “harvested” – scraped or dredged – from accumulated debris found in and around living coral reefs.29 мая 2015 г.

How is coral formed?

Coral reefs begin to form when free-swimming coral larvae attach to submerged rocks or other hard surfaces along the edges of islands or continents. As the corals grow and expand, reefs take on one of three major characteristic structures — fringing, barrier or atoll.

Where is coral found?

Most reefs are located between the Tropics of Cancer and Capricorn, in the Pacific Ocean, the Indian Ocean, the Caribbean Sea, the Red Sea, and the Persian Gulf. Corals are also found farther from the equator in places where warm currents flow out of the tropics, such as in Florida and southern Japan.

Do coral reefs produce oxygen?

Just like plants, providing oxygen for our earth, corals do the same. Typically, deep oceans do not have a lot of plants producing oxygen, so coral reefs produce much needed oxygen for the oceans to keep many species that live in the oceans alive.8 дек. 2017 г.

What are the 3 types of coral?

The three main types of coral reefs are fringing, barrier, and atoll.26 февр. 2021 г.

Is coral living or nonliving?

Corals consist of small, colonial, plankton-eating invertebrate animals called polyps, which are anemone-like. Although corals are mistaken for non-living things, they are live animals. Corals are considered living animals because they fit into the five criteria that define them (1.8 мар. 2019 г.

Can corals feel pain?

“I feel a little bad about it,” Burmester, a vegetarian, says of the infliction, even though she knows that the coral's primitive nervous system almost certainly can't feel pain, and its cousins in the wild endure all sorts of injuries from predators, storms, and humans.

What are the 2 main types of coral?

There are two main types of corals — hard and soft.

What is the most common type of coral?

Fringing reefs are the most common type of coral reef. They grow seaward near coastlines of islands and continents, usually separated from the shore by no more than a shallow lagoon.21 сент. 2020 г.

What are corals and why are they important?

“Corals are important because they provide us with resources. Coral reefs provide medicine and jobs. People also receive food from the coral reefs and they need this food to survive. They also protect us from storms and large waves.”.

What are some interesting facts about coral?

Interesting Coral Facts: Corals are made of millions of tiny, dead and alive, sac-shaped creatures called polyps. Type of coral can be determined based on the size, shape and color of the colony. Polyps have hard, limestone skeleton at the base of the body which fuses with skeletons of other polyps and leads to the formation of colony.

What are corals classified as?

Presently, corals are classified as certain species of animals within the sub-classes Hexacorallia and Octocorallia of the class Anthozoa in the phylum Cnidaria . Hexacorallia includes the stony corals and these groups have polyps that generally have a 6-fold symmetry.

Is coral living or nonliving?

Coral reefs have living corals that live on the surface but mainly are non living remains that is rock (limestone). The entire ecosystem is unique. The term coral reef also encompasses the living animals and fauna in which they usually have some type of symbiotic relationship with.

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