What is the biggest difference between the geocentric model and the heliocentric model

The main difference is that the geocentric has the Earth at the center, and the heliocentric has the sun at the center. The geocentric model says that the earth is at the center of the cosmos or universe, and the planets, the sun and the moon, and the stars circles around it. The early heliocentric models consider the sun as the center, and the planets revolve around the sun.

Explanation:

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name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?