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The organ level of organisation in animals can be first detected in flatworms and the more derived phyla, i.e. the bilaterians. The less-advanced taxa (i.e. Placozoa, Porifera, Ctenophora and Cnidaria) do not show unification of their tissues into organs. More complex animals are composed of different organs, which have evolved over time.
The sex organs of the green algae Chara are the male antheridia (red) and female archegonia (brown). A sex organ, also known as a reproductive organ, is a part of an organism that is involved in sexual reproduction.
Carol Williams performing at the United States Military Academy West Point Cadet Chapel.. In music, the organ is a keyboard instrument of one or more pipe divisions or other means (generally woodwind or electric) for producing tones.
Sierra de los Órganos (pronounced [ˈsjera ðe los ˈoɾɣanos]) is a mountain range in the province of Pinar del Río, western Cuba. [1] Along with the Sierra del Rosario , it is part of the Guaniguanico mountain range.
Sierra de Órganos is nestled within the Sierra Madre Occidental mountain range, in an area that corresponds to the physiographic province of the Mexican Plateau. The topography is uneven, with elevations ranging from 2,120 to 2,560 metres (6,960 to 8,400 ft) above sea level. [ 1 ]