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O pólen (do grego "pales" = "farinha" ou "pó") é o conjunto dos minúsculos grãos produzidos pelas flores das angiospermas (ou pelas pinhas masculinas das gimnospermas), que são os elementos reprodutores masculinos ou microgametófitos, onde se encontram os gâmetas que vão fecundar os óvulos, que posteriormente irão se transformar em sementes. [ 1] .
Poland. Coordinates: 52°N 20°E. Poland, [d] officially the Republic of Poland, [e] is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, and has a temperate transitional climate, while its longest river is the Vistula.
Polen ist ein in 16 Woiwodschaften gegliederter Einheitsstaat. Mit einer Größe von 312.696 Quadratkilometern [1] [2] ist Polen das sechstgrößte Land der Europäischen Union und mit 38,18 Millionen Einwohnern das fünftbevölkerungsreichste.
Welcome to the Poland Portal — Witaj w Portalu o Polsce. Poland is a country in Central Europe, bordered by Germany to the west, the Czech Republic to the southwest, Slovakia to the south, Ukraine and Belarus to the east, Lithuania to the northeast, and the Baltic Sea and Russia 's Kaliningrad Oblast to the north.
O pólen é o conjunto dos minúsculos grãos produzidos pelas flores das angiospermas , que são os elementos reprodutores masculinos ou microgametófitos, onde se encontram os gâmetas que vão fecundar os óvulos, que posteriormente irão se transformar em sementes. O estudo do pólen é a palinologia.
History portal. v. t. e. The history of Poland spans over a thousand years, from medieval tribes, Christianization and monarchy; through Poland's Golden Age, expansionism and becoming one of the largest European powers; to its collapse and partitions, two world wars, communism, and the restoration of democracy .
Poland is a country in the eastern region of Central Europe. [8] . Its official name is Republic of Poland. It is on the east of Germany (along Oder and Lusatian Neisse ). The Czech Republic and Slovakia are to the south, Ukraine and Belarus to the east, and the Baltic Sea, Lithuania, and the Russian exclave Kaliningrad to the north.
