How does the theory of inflation explain the near-uniformity of the cosmic microwave background?
A) Prior to rapid inflation, all regions of space were close enough to bounce radiation back-and-forth and reach the same temperature.
B) Matter expanded into regions of space that had no matter, and thus ended up at the same temperature.
C) The expanding universe would have cooled.
D) Matter was near the critical-density for a universal collapse, which smoothed out the differences in temperatures.
Question 2
Place the following items in order of actual physical size, from smallest to largest.
A) planets and stars are about the same size, solar system, galaxy
B) star, planet, solar system, galaxy
C) star, planet, galaxy, solar system
D) planet, star, galaxy, solar system
E) planet, star, solar system, galaxy
The work of Charles Darwin forms the foundation for modern evolutionary theory.
Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican
Theory of Endosymbiosis
This modified model of Easton’s systems theory puts government decision makers as the source of pol
Gate control theory. A. open gate, B. closed gate
The James-Lange Theory of Emotion