Sterna is a genus of terns in the bird family Laridae. The genus used to encompass most "white" terns indiscriminately, but mtDNA sequence comparisons have determined that this arrangement was paraphyletic.

The sternum (pl.: sternums or sterna) or breastbone is a long flat bone located in the central part of the chest. It connects to the ribs via cartilage and forms the front of the rib cage, thus helping to protect the heart, lungs, and major blood vessels from injury.

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The roseate tern (Sterna dougallii) is found throughout the world. The North Atlantic subspecies, Sterna dougallii dougallii , is divided into two populations in North America because they breed in two discrete areas and rarely mix.

The common tern[2] (Sterna hirundo) is a seabird in the family Laridae. This bird has a circumpolar distribution, its four subspecies breeding in temperate and subarctic regions of Europe, Asia and North America. It is strongly migratory, wintering in coastal tropical and subtropical regions.

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Продажба на нови и користени дигитални апарати за фотокопирање, скенирање, мултифункционални апарати и печатари. Продажба на оригинални резервни делови и потрошен материјал. Изнајмување на апарати за фотокопирање/печатење/скенирање. Продажба на оргинални тонери и дополнителен потрошен материјал.

The meaning of STERNUM is a compound ventral bone or cartilage of most vertebrates other than fishes that connects the ribs or the shoulder girdle or both and in humans consists of the manubrium, gladiolus, and xiphoid process —called also breastbone.

Always associated with water, this large tern can be seen on river beaches, over lakes and marshes, or along the ocean throughout the world. It feeds on fish and crustaceans captured by diving headfirst into the water. Breeding colonies are on beaches and grassy hummocks near the water, and the nest is on the sand with some moss or grass.

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