Coral reefs

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

Lumisome

Natural environment; Coral reefs

In some cnidarians, a small, intracellular membrane-enclosed vesicle which contains all the proteins necessary for bioluminescence .

Extrinsic

Natural environment; Coral reefs

Not forming an essential part of a thing; arising or originating from the outside.

Ciliary

Natural environment; Coral reefs

Relating to any cilia or hairlike processes; can relate to muscles concerned with visual focusing.

Biogeochemical cycle

Natural environment; Coral reefs

The chemical interactions among the atmosphere, biosphere, hydrosphere, and lithosphere.

Carrying capacity

Natural environment; Coral reefs

The maximum population size that can be regularly sustained by an environment; the point where the population size levels off in the logistic growth model.

Valve

Natural environment; Coral reefs

The shell or shells of certain organisms, such as clams, oysters, and snails.

Work of an animal

Natural environment; Coral reefs

Results of the activity but not part of the animal itself, e.g., tracks, trails, worm-tubes, borings (but excludes some fossil evidence such as internal molds, external impressions and replacements).