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Some living organisms are only one cell, or unicellular. Things like bacteria and amoebas are single cell organisms. ... Because cells are able to differentiate and perform different tasks, multicellular organisms can become very complex. For example, red blood cells can carry oxygen throughout the body.
Samuel Slater built the first Cotton-Spring mill.
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The United States went to war with Mexico in 1846. By the end of the war, Mexico would lose almost half its territory to the U.S., including lands from Texas to California. The war was a key event in American History as it fulfilled its 'manifest destiny', encompassing land from the Atlantic Ocean to the Pacific.
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Between 1870 and 1900, the largest number of immigrants continued to come from northern and western Europe including Great Britain, Ireland, and Scandinavia. But "new" immigrants from southern and eastern Europe were becoming one of the most important forces in American life.
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He portrays them as naïve, innocent children. It apparently took them a while to figure out that the Spanish were not on a “Mission from Heaven.” The Indians are essentially defenseless against the Spanish, and when they do take up arms, their weapons resemble those of boys.
