The Most Significant Difference Between the Astronomical Theories of Ptolemy

question 53

Multiple Choice

The most significant difference between the astronomical theories of Ptolemy and Copernicus is

• A) Ptolemy uses circular planetary orbits while Copernicus uses elliptical orbits.
• B) Ptolemy's theory does away with many of the complexities of the Copernican theory.
• C) Ptolemy's theory is Earth- centered, whereas Copernicus's is sun- centered.
• D) Ptolemy's is not based on scientific evidence, while Copernicus's is.
• E) Ptolemy's theory is sun- centered, whereas Copernicus's is Earth- centered.

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Definitions:

Cranial Nerves

Peripheral nerves that originate from the brain.

Peripheral Nerves

Nerves located outside the brain and spinal cord that connect the central nervous system to limbs and organs, transmitting signals to and from the body.

Neuron

A specialized cell transmitting nerve impulses; a nerve cell, the fundamental unit of the nervous system with the ability to communicate information through electrical and chemical signals.

Nucleus

The central and most important part of an atom, cell, or structure, typically containing protons and neutrons in an atom or genetic material in a cell.