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

Renaturation

Natural environment; Coral reefs

The conversion of denatured protein or DNA to its native configuration. This is rare for proteins. However, if DNA is denatured by heating, the two strands separate. If the heat-denatured DNA is then ...

Frequency

Natural environment; Coral reefs

The number of items occurring in a given category.

Null hypothesis (Ho)

Natural environment; Coral reefs

The statistical hypothesis that states that there are no differences between observed and expected data. The null hypothesis is used in experimental research. It asserts arbitrarily that there is no ...

Ventral disc

Natural environment; Coral reefs

A "sucking disc " formed by the uniting of the pelvic fins in some fishes; for example, clingfishes .

Sea state

Natural environment; Coral reefs

A description of the sea surface with regard to wave action.

Zone

Natural environment; Coral reefs

A large-scale physical feature within the ecosystem. Reef zones are determined by currents, wave surge, exposure to sunlight and water depth, and may be comprised of a number of habitats.