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

White skeleton

Natural environment; Coral reefs

The exposed white calcium carbonate skeleton of a coral colony.

Integrated coastal zone management

Natural environment; Coral reefs

The process of combining all aspects of the human, physical and biological aspects of the coastal zone within a single management framework.

Thallus

Natural environment; Coral reefs

The vegetative body of a plant or alga that is not differentiated into organs, such as roots,stems and leaves.

G2

Natural environment; Coral reefs

Phase in the cell cycle between the completion of DNA synthesis and the next cell division.

Velum

Natural environment; Coral reefs

A circular shelf of tissue attached to the underside of the umbrella in a hydrozoan mesusa. It functions in locomotion.

Nauplius larva

Natural environment; Coral reefs

A free-swimming, planktonic larval stage of many crustaceans.

Plastid

Natural environment; Coral reefs

A membrane-bound organelle in plant cells that functions in storage (of food or pigments) or food production. Chloroplasts contain the pigments for photosynthesis.