2. Why do you think it matters how close or how far an object is from the Sun to sustain life on that object's surface?
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In Copernicus's heliocentric model the planets orbit in circles around the sun. One may wonder how Copernicus determined the order of the planets and the size of their orbits – after all, he had no benefit of pictures from spacecraft or even a telescope.

Explanation:

a. a clone will be physically identical to the original, but won’t be genetically identical

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