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Hace 2 días · Social Detail of a gold glass medallion with a portrait of a family, from Alexandria (Roman Egypt), 3rd–4th century (Brescia, Museo di Santa Giulia). One of the primary functions of the family involves providing a framework for the production and reproduction of persons biologically and socially. This can occur through the sharing of material substances (such as food); the giving and ...
Hace 3 días · Unibody. The Volkswagen Tiguan ( German pronunciation: [ˈfɔlksˌvaːgŋ̍ ˈtiːɡu̯aːn]) is a series of cars produced by German manufacturer Volkswagen since 2007, sitting between the smaller T-Roc and the larger Touareg in the company's crossover SUV range. The first generation was based on the PQ46 platform, while the second generation ...
Hace 1 día · Etymology Chalcolithic Dolmen Anta da Arca. The word Portugal derives from the combined Roman-Celtic place name Portus Cale (present-day's conurbation of Porto and Vila Nova de Gaia).Porto stems from the Latin for port, portus; Cale ' s meaning and origin is unclear. The mainstream explanation is an ethnonym derived from the Callaeci, also known as the Gallaeci peoples, who occupied the north ...
Hace 3 días · Enzymes (/ ˈ ɛ n z aɪ m z /) are proteins that act as biological catalysts by accelerating chemical reactions.The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products.Almost all metabolic processes in the cell need enzyme catalysis in order to occur at rates fast enough to sustain life.
Hace 1 día · Africa. Africa is the world's second largest and second-most populous continent after Asia. At about 30.3 million km 2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth 's land area and 6% of its total surface area. [7] With 1.4 billion people [1] [2] as of 2021, it accounts for about 18% of the world's human ...
Hace 3 días · Mutation with double bloom in the Langheck Nature Reserve near Nittel, Germany. In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. [1] Viral genomes contain either DNA or RNA.
Hace 1 día · Medicare is a federal health insurance program in the United States for people age 65 or older and younger people with disabilities, including those with end stage renal disease and amyotrophic lateral sclerosis (ALS or Lou Gehrig's disease). It was begun in 1965 under the Social Security Administration and is now administered by the Centers ...
