In the year 100, Ptolemy introduced the geocentric model of the solar system. By the year 1542, Copernicus introduced a new model of the solar system called the heliocentric model. With this
example in mind, which of the statements below best summarizes what we learned from these models?

Ptolemaic system, also called geocentric system or geocentric model, mathematical model of the universe formulated by the Alexandrian astronomer and mathematician Ptolemy about 150 CE and recorded by him in his Almagest and Planetary Hypotheses. The Ptolemaic system is a geocentric cosmology; that is, it starts by assuming that Earth is stationary and at the centre of the universe. The “natural” expectation for ancient societies was that the heavenly bodies (Sun, Moon, planets, and stars) must travel in uniform motion along the most “perfect” path possible, a circle. However, the paths of the Sun, Moon, and planets as observed from Earth are not circular. Ptolemy’s model explained this “imperfection” by postulating that the apparently irregular movements were a combination of several regular circular motions seen in perspective from a stationary Earth.

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answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

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explanation:

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