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Newgrange is the main monument in the Brú na Bóinne complex, a World Heritage Site that also includes the passage tombs of Knowth and Dowth, as well as other henges, burial mounds and standing stones. [3] Newgrange consists of a large circular mound with an inner stone passageway and cruciform chamber.
Example of a pedigree chart using Ahnentafel numbering. A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes [jargon] of a particular gene or organism and its ancestors from one generation to the next, [1] [2] [3] [unreliable source?] most commonly humans, show dogs, and race horses.
The area is located eight kilometers west of Drogheda in County Meath, Ireland, in a bend of the River Boyne. It is around 40 kilometers north of Dublin. [4]Brú na Bóinne is surrounded on its southern, western and eastern sides by the Boyne; additionally, a small tributary of the Boyne, the River Mattock, runs along the northern edge, almost completely surrounding Brú na Bóinne with water.
The pygmy mammoth is an example of insular dwarfism, a case of Foster's rule, its unusually small body size an adaptation to the limited resources of its island home.. A biological rule or biological law is a generalized law, principle, or rule of thumb formulated to describe patterns observed in living organisms.
Also called Indianite. A mineral from the lime-rich end of the plagioclase group of minerals. Anorthites are usually silicates of calcium and aluminium occurring in some basic igneous rocks, typically those produced by the contact metamorphism of impure calcareous sediments. anticline An arched fold in which the layers usually dip away from the fold axis. Contrast syncline. aphanic Having the ...
A clade is by definition monophyletic, meaning that it contains one ancestor which can be an organism, a population, or a species and all its descendants. [ note 1 ] [ 10 ] [ 11 ] The ancestor can be known or unknown; any and all members of a clade can be extant or extinct.
[1] Geobiology is a field of scientific research that explores the interactions between the physical Earth and the biosphere. It is a relatively young field, and its borders are fluid. There is considerable overlap with the fields of ecology, evolutionary biology, microbiology, paleontology, and particularly soil science and biogeochemistry.
The rising Sun illuminates the inner chamber of Newgrange, Ireland, only at the winter solstice.. Archaeoastronomy (also spelled archeoastronomy) is the interdisciplinary [1] or multidisciplinary [2] study of how people in the past "have understood the phenomena in the sky, how they used these phenomena and what role the sky played in their cultures". [3]