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In the same way the context in which a text is written influences the author's final product, the historical period in which that text is interpreted greatly shifts our perception of its themes and messag...
El préterito perfecto es el equivalente del past perfect, que utiliza el verbo auxiliar haber + el participio del verbo principal como en inglés have + past participle. Por ejemplo, yo he comido,...
An externality is a benefit or a cost borne by a third party when producing or consuming a good. Hence there can be negative and positive externalities of production and consumption. E.g. Cigarettes have ...
A shift in the demand curve occurs when there is a non-price determinant of demand, including a change in consumers' income, changing trends and tastes, changes in the price of complementary and substitut...
A population will always have some level of genetic variation for a specific character, giving different variants of the same character. Some characters are essential for fitness a...
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