Calculating Death Rate
In one year, two armadillos are born into a population in South America. Six armadillos immigrate into the population, but one leaves to find an area with more food. If the overall population growth is five armadillos, how many armadillos died during the year?

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the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.