Scientists today do not accept the Ptolemaic model because:
A) it is ancient history.
B) it was too complicated, compared to Copernicus' heliocentric model.
C) it has been shown that Ptolemy faked his data.
D) it had no explanation for retrograde motion.
E) the work of Tycho and Kepler showed the heliocentric model was more accurate.
Question 2
Saturn's cloud surface appears more uniform than Jupiter's because:
A) there is a thick outer cloud covering of water ice overlying the colorful ices.
B) due to Saturn's lower gravity, the colorful cloud layers escaped.
C) it is composed of completely different gases than Jupiter's.
D) the cloud layers are thicker, allowing fewer holes to see the colorful layers.
E) due to Saturn's greater distance from the Sun, the colorful cloud layers are just not visible.
Dentition, as illustrated in Knight's Sketches in Natural History
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Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that
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