C. The sentences are of the writer's own voice and thought and not cliche or verbal generalities.
Answer: Short periods
Explanation:
The species must have only lived for a short period of geologic time.
Hope this helped.
Answer:
#9 - aplomb
#10 - Memorable (maybe eloquent, but the the use of 'simple' in the description basically contradicts the idea of its eloquence)
#11 - nadir
#12 - gyrate
Explanation:
definitions:
Aplomb: self-confidence or assurance, poise. memorable is self-explanatory. nadir: the lowest point; point of greatest adversity or despair.
gyrate: To move in a spiral or spirallike course.