- المجال: Government
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
The raised area behind the head in certain fish species, usually mature adults or breeding males.
Industry:Natural environment
The cell cycle phase during which the DNA doubles with replication of the chromosomes.
Industry:Natural environment
A colony that develops within the tissue of a parent colony and which has its own unattached skeleton.
Industry:Natural environment
A genetically uniform strain in which all members have descended by self-fertilization or close inbreeding.
Industry:Natural environment
A minute short cellular hair-like process (microvillus) responsible for locomotion in motile unicellular organisms, or in higher forms, generates a current of fluid.
Industry:Natural environment
A rigid, wave resistant calcareous structure constructed by sessile organisms such as sponges, corals, and bryozoans, in a high energy environment.
Industry:Natural environment
An adventitious root that grows from and supports the trunk above the ground in plants, such as mangroves.
Industry:Natural environment
An organism which feeds on dead and decaying organisms, allowing the nutrients to be recycled into the ecosystem. Fungi and bacteria are two groups with saprophytic members.
Industry:Natural environment
