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

Molecular genetics

Natural environment; Coral reefs

The study of how genes function to control cellular activities.

A bony fish species (Zanclus cornutus) in the family Zanclidae. The moorish idol is the only species in the family. It has a long, white, sickle-shaped dorsal fin, two broad vertical black bars on ...

Era

Natural environment; Coral reefs

A division of geologic time next smaller than the aeon and larger than a period. Example: The Paleozoic era is in the Phanerozoic aeon and includes, among others, the Devonian period.

Evolutionary tree

Natural environment; Coral reefs

A lineage designed to show the evolutionary history of relationships among groups of organisms.

Chromoplast

Natural environment; Coral reefs

A plastid containing pigments other than chlorophyll, usually yellow or orange carotenoids.

Dorid nudibranch

Natural environment; Coral reefs

A type of nudibranch (order Nudibranchia) possessing a feather-like external gill on the back and a rhinophoral sheath. The mantle is thick and extends over the foot. The surface of the mantle may ...

Artisanal fishing

Natural environment; Coral reefs

Fishing which is typically a small-scale operation that uses simple fishing methods; fishing for subsistence by coastal or ethnic island groups using traditional methods; fishing with the purpose of ...