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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.

Contributors in Coral reefs

Coral reefs

Cloaca

Natural environment; Coral reefs

The common passage for fecal, urinary and reproductive discharge in most lower vertebrates.

Emigration

Natural environment; Coral reefs

The movement of individuals out of a population or from one area to another.

Blowout

Natural environment; Coral reefs

With reference to offshore drilling for oil and gas, a blowout is an uncontrolled flow of reservoir fluids into the wellbore, and sometimes catastrophically to the surface. A blowout may consist of ...

Metric system

Natural environment; Coral reefs

A decimal system of measures and weights with the metre and the gramme as bases.

Wrasse

Natural environment; Coral reefs

A large family (Labridae) of brightly-colored bony fishes which are common inhabitants of coral reefs. Many have spiny fins, thick lips, and strong teeth. They range in size from about three inches ...

Spermatophore

Natural environment; Coral reefs

A packet containing sperm cells which is produced by the male genital system for transfer to the female. This method of sperm transfer is found in some vertebrates (salamanders) as well as ...

Frond

Natural environment; Coral reefs

A leaf-like thallus, such as the body of a kelp.

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