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Coral reefs
Coral reefs are structures formed from the calcium carbonate secretions of corals. They are colonies of tiny animals in marine areas containing few nutrients.
Industry: Natural environment
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Coral reefs
Satellite
Natural environment; Coral reefs
A small celestial body orbiting a larger one; a man-made object designed to orbit a celestial body.
Neurotoxin
Natural environment; Coral reefs
A toxic substance which interferes with the electrical activities of nerves and inhibits, damages or destroys the tissues of the nervous system, especially neurons (nerve cells) .
Sea star
Natural environment; Coral reefs
An echinoderm characterised by radial symmetry, and usually with five arms (rays) radiating from a central body. Minute pincer-like structures on the arms, called pedicellaria, ensure that the ...
Choanocyte chamber
Natural environment; Coral reefs
In sponges, a cavity lined with choanocytes and located between incurrent and excurrent systems.
Abnormal
Natural environment; Coral reefs
Not normal; contrary to the usual structure, position, behaviour or rule.
Austral
Natural environment; Coral reefs
Relating to or coming from the south; of the south temperate region, between the antarctic and tropical regions.
Cement
Natural environment; Coral reefs
The chemically precipitated calcium carbonate present in spaces within skeletons or between grains of internal sediment.
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