Verbal Reasoning:

1. The correct answer is (B). The author attempts to point out the symptoms that require a visit to the doctor and alludes to those that can be personally treated. Choice (A) is incorrect; while selecting quality health care is very important, there is no effort on the part of the author to deal with this subject. Choice (C) is incorrect; the author alludes to the importance of holding down the cost of health care, but focuses on care for the proper reasons. Choice (D) is incorrect; there is no mention of maintaining consistency in quality of life.

2. The correct answer is (C). The author makes the statement that "If they did, our entire system of medical care would be swamped overnight and the doctors would be unable to take care of the more serious problems." Choice (A) is incorrect; while this may be true, this is not indicated in this article. Choices (B) and (D) are incorrect; although both are probably true, there is no evidence in this article to support either statement.

Physical Science:

The correct answer is (C). The work-energy theorem relates the change in kinetic energy to work done on the puck:

work on puck: ½mv²final - ½mv²initial

Since the force of gravity is vertical, while the displacement of the puck is horizontal, the force of gravity does no work. Since the only horizontal force on the puck is the friction force, all of the work on the puck is done by friction:

work on puck = work by friction = ½mv²final - ½mv²initial

or

work by friction = 0 - ½(0.16kg)(50m²) = -200 Joule
Since friction always exerts a force opposite to the velocity, the work done by friction is expected to be negative, as calculated.

Biological Science:

1. The correct answer is (B). The gram stain is used to identify Gram-positive vs. Gram-negative cells, based on the cell wall composition of the organism.

2. The correct answer is (B). The limbic system includes the limbic lobe as well as the associated subcortical nuclei. It is associated with emotional responses and the integration of olfactory information with visceral and somatic information.

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