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What is one of the author's primary purposes in writing this essay?
- A. To persuade
- B. To entertain
- C. To analyze
- D. To reflect
Correct Answer: A
Rationale: The author primarily aims to persuade the reader of the health benefits of omega-3 fatty acids and encourages ensuring sufficient omega-3 intake through diet.
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What is the meaning of the word moderate as used in the last paragraph?
- A. Diminish
- B. Facilitate
- C. Enhance
- D. Conclude
Correct Answer: A
Rationale: In this context, "moderate" means to diminish or reduce the severity of symptoms, such as those of attention deficit hyperactive disorder.
What is the meaning of the word leached as used in the last paragraph?
- A. Sucked
- B. Compressed
- C. Seeped
- D. Materialized
Correct Answer: C
Rationale: "Leached" refers to the process by which substances, such as lead, seep or dissolve out of materials, in this case, water pipes.
A reader might infer from this passage that NASA ___________.
- A. Plans new twin studies as it aims for Mars
- B. Allows other agencies to study its astronauts
- C. Will use these data in planning future trips
- D. Cares more about physiology than psychology
Correct Answer: C
Rationale: The passage suggests that NASA will use the findings from the twin study to plan future extended space missions.
Which of the following is a conclusion that a reader can draw from this passage?
- A. Humans are not the only mammals that exhibit symptoms when infected by Borrelia burgdorferi.
- B. The life cycle of an uninfected tick includes a dormant phase before the nymph stage, which is not excluded.
- C. Unless a tick feeds on an infected mouse or squirrel, it will not spread Lyme disease.
- D. The combination of fever, headache, and joint pain is not a definite indication of Lyme disease.
Correct Answer: C
Rationale: The correct answer is C. The passage clearly states that for Lyme disease to spread, a tick must feed on an infected host, such as a mouse or squirrel. This conclusion can be drawn from the information provided in the extract. Choice A is incorrect because the passage does not specify that humans are the only mammals that exhibit symptoms when infected by Borrelia burgdorferi. Choice B is incorrect as the passage mentions that the life cycle of an uninfected tick includes a dormant phase before the nymph stage, without excluding it. Choice D is incorrect because the passage does not state that the combination of fever, headache, and joint pain is a definitive sign of Lyme disease.
What is the meaning of the word innocuous as used in the first paragraph?
- A. Undiscovered
- B. Harmless
- C. Imperceptible
- D. Purposeless
Correct Answer: B
Rationale: The word "innocuous" in this context means harmless, indicating that most nail abnormalities are not dangerous.