Which word BEST completes the analogy?
organism : ecosystem :: gear :
A. machine
B. endangered
C. music
D. forest

The brother of a presidential candidate writes an editorial in which he defends this candidate against charges of corruption. in such a circumstance, it is most appropriate for the reader to a) suspect that the candidate may have been framed. b) consider whether the candidate has the best family or not. c) wonder if the writer may be biased, due to his family connection. d) wonder if the writer may be inaccurate, due to wanting to get people to read his column. \

Find the center and the radius of the circle with the equation: x^-2x+y^2+4y+1=0

Which of the following is the original meaning of the word college? a. an independent institution of higher learning offering a course of general studies leading to a bachelor’s degree b. a building used for an educational or religious purpose c. a group of persons considered by law to be a unit d. a body of clergy, living together and supported by a foundation