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Sickle-cell disease was the genetic disorder to be linked to a mutation of a specific protein. Pauling introduced his fundamentally important concept of sickle cell anemia as a genetically transmitted molecular disease. [20] This vein (4) shows the interaction between the malaria sporozoites (6) with sickle cells (3) and regular cells (1).
A world map illustrating the proportion of population aged 15-49 infected with HIV in 2019. HIV is endemic especially in Southern Africa. In 2011, sub-Saharan Africa was home to 69% of all people living with HIV/AIDS worldwide. [205] In response, a number of initiatives have been launched to educate the public on HIV/AIDS.
A Map of the World is a 1999 American drama film, based on the 1994 novel of the same name by Jane Hamilton.Directed by Scott Elliott and produced by Kathleen Kennedy and Frank Marshall, the film stars Sigourney Weaver, Julianne Moore and David Strathairn.
The Neolithic Revolution, also known as the First Agricultural Revolution, was the wide-scale transition of many human cultures during the Neolithic period in Afro-Eurasia from a lifestyle of hunting and gathering to one of agriculture and settlement, making an increasingly large population possible. [1]
Precipitation is very irregular in tropical deserts. The average annual precipitation in low latitude deserts is less than 250 mm. Relative humidity is very low – only 10% to 30% in interior locations, and even the dewpoints are typically very low, often being well below the freezing mark. Some deserts do not have rainfall all year round ...
Most water in Earth's atmosphere and crust comes from saline seawater, while fresh water accounts for nearly 1% of the total. The vast bulk of the water on Earth is saline or salt water, with an average salinity of 35‰ (or 3.5%, roughly equivalent to 34 grams of salts in 1 kg of seawater), though this varies slightly according to the amount of runoff received from surrounding land.
Team Hole in the Wall is an athletic fundraising initiative managed by the Hole in the Wall Gang Camp. [6] Amateur athletes join up to raise a specified amount of funds and receive entrance to a marathon, bike ride or other athletic event in support of seriously ill children served by The Hole in the Wall Gang Camp or one of its associated camps around the world.
Scutigera coleoptrata, also known as the house centipede, is a species of centipede that is typically yellowish-grey and has up to 15 pairs of long legs. Originating in the Mediterranean region, it has spread to other parts of the world, where it can live in human homes. [1]