The steamboat represented an important phase in the development of shipping. hope this helps.
Yes, studying how mayfly population affects the number of trout in a stream is ecology.
Ecology seeks to unveil how different organism relate with one another as well as their environment.
Ecology is basically the study of distribution,abundance and relation of organisms and their interaction with their environment.
The grange movement began when <span>Kelley in 1867 began as an organization "the </span><span>Patrons of Husbandry" he hoped this would bring farmers together for educational discussions and social purposes.</span>
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Our Queen was forced to sign the papers that authorized the United States to annex Hawaii with a pistol to her head and the threat of blood shed to her people. She was forced and imprisoned wrongfully, in her own royal palace. Had she not done that, her people would have been killed.
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La historia de las matemáticas es el área de estudio de investigaciones sobre los orígenes de descubrimientos en matemáticas, de los métodos de la evolución de sus conceptos y también en cierto grado, de los matemáticos involucrados. El surgimiento de la matemática en la historia humana está estrechamente relacionado con el desarrollo del concepto del número, proceso que ocurrió de manera muy gradual en las comunidades humanas primitivas. Aunque disponían de una cierta capacidad de estimar tamaños y magnitudes, no poseían inicialmente una noción de número. Así, los números más allá de dos o tres, no tenían nombre, de modo que utilizaban alguna expresión equivalente a "muchos" para referirse a un conjunto mayor.1
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