Unlike the "mantle plume" theory, the "Nemesis" theory helps to explain___
A. the regularity with which mass extinctions have occurred
B. the evolution of maniraptorans into birds
C. the extinction of many dinosaur species
D. the dramatic drop in global temperatures
E. why certain species developed feathers
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In line 27 the word “pressure" indicates___
A. a physical weight
B. a deep-seated anxiety
C. an effective intimidation
D. a natural influence
E. a geological stress
All of the following phenomena are mentioned in both passages EXCEPT___
A. global cooling
B. mass extinction
C. meteoric impact
D. volcanic activity
E. evolution
The authors of both passages would agree with all of the following statements about the mass extinction event of 65 million years ago EXCEPT___
A. It involved a drop in global temperatures.
B. There is still debate among scientists about its cause.
C. No dinosaurs could adapt to the dramatic climate change.
D. It may have been influenced by volcanic activity.
E. The cause may have had extraterrestrial origins.
Which of the following in Passage 2 is the best example of one of the "sensory categories" discussed in Passage 1?___
A. "smooth flow" in line 15
B. "experience" in line 17
C. "red" in line 23
D. "cells" in line 24
E. "mosquitoes" in line 33
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