Read the following early draft of an essay and then choose the best answer to the question or the best completion of the statement
Passage
(1) Calling someone a rat may be complimentary. (2) In one experiment, University of Chicago neuroscientist Peggy Mason placed 30 pairs of rats in pens. (3) One rat was caged in the middle of the pen, while the other was free to run around. (4) Eventually, 23 of 30 rats liberated their peers by pushing the cage door open with their heads or leaning against the door until it tipped over.
(5) In another experiment, Mason gave rats access to two cages: in one cage was another rat, in the other was a pile of chocolate chips. (6) The rats eating the chocolate themselves. (7) Instead, most of the rodents opened both cages and shared the sweets. (8) "In rat land, that is big," Mason says, claiming that this study is the first to show altruistic behavior in rodents.
(9) Not all scientists agree with the conclusion Mason drew from the experiment, however. (10) The jailbreaking rats might have only been trying to silence their cohorts' distressing alarm calls. (11) Mason counters that the alarm calls from the caged rats were not frequent enough to motivate their peers, but both parties are speculating at this point.
(12) Mason's new study is one of many that are changing how scientists think about empathy and altruism, namely: that such characteristics are not limited to people, as they once thought. (13) It now seems that many animals have evolved instincts to help others.
Where would the following sentence best fit in the passage? The results of two new experiments suggest that rats are surprisingly selfless.
- A. After sentence 1
- B. After sentence 3
- C. After sentence 8
- D. After sentence 11
Correct Answer & Rationale
Correct Answer: C
Placing the sentence after sentence 8 effectively introduces the new findings about rats, enhancing the flow of information regarding their behavior. This position allows for a natural transition into discussing the implications of these experiments. Option A is too early in the passage, as it lacks context for the experiments. Option B, following sentence 3, interrupts the narrative progression and does not align with the preceding content. Option D, after sentence 11, is too late, as it would disrupt the conclusion by introducing new information that should precede it. Thus, option C is the most logical placement.
Placing the sentence after sentence 8 effectively introduces the new findings about rats, enhancing the flow of information regarding their behavior. This position allows for a natural transition into discussing the implications of these experiments. Option A is too early in the passage, as it lacks context for the experiments. Option B, following sentence 3, interrupts the narrative progression and does not align with the preceding content. Option D, after sentence 11, is too late, as it would disrupt the conclusion by introducing new information that should precede it. Thus, option C is the most logical placement.
Other Related Questions
In context, which of the following sentences would best be inserted between sentences 9 and 10 (reproduced below)?
They say we could save a great deal of energy by addressing the problem of food waste. The "sell by" dates on foods are typically very conservative and result in people throwing away perfectly edible items.
- A. Better labeling might help
- B. Many people regularly buy more food than they need.
- C. Certain types of produce spoil more quickly than others.
- D. Canned foods last much longer than fresh items
Correct Answer & Rationale
Correct Answer: A
Option A effectively connects the idea of food waste with the potential solution of better labeling. Improved labeling can help consumers understand the actual freshness of products, reducing unnecessary waste. Option B, while relevant to food consumption, does not directly address the issue of food waste or how to mitigate it. Option C focuses on spoilage rates of produce, which, although informative, does not provide a solution to the waste problem. Option D compares canned and fresh foods but fails to connect to the overarching theme of improving food labeling to reduce waste.
Option A effectively connects the idea of food waste with the potential solution of better labeling. Improved labeling can help consumers understand the actual freshness of products, reducing unnecessary waste. Option B, while relevant to food consumption, does not directly address the issue of food waste or how to mitigate it. Option C focuses on spoilage rates of produce, which, although informative, does not provide a solution to the waste problem. Option D compares canned and fresh foods but fails to connect to the overarching theme of improving food labeling to reduce waste.
Which is the best version of the underlined portion of sentence 13 (reproduced below)?
It might result in fewer trips to the store, which could keep fuel and cut down on pollution
- A. (as it is now)
- B. protect
- C. conserve
- D. support
Correct Answer & Rationale
Correct Answer: C
The phrase "cut down on pollution" suggests reducing waste, making "conserve" the most suitable choice. It aligns with the idea of using fewer resources, such as fuel, to achieve environmental benefits. Option A retains the original wording, which lacks precision and clarity. Option B, "protect," implies safeguarding resources but does not directly convey the idea of reducing usage. Option D, "support," suggests encouragement or assistance, which is not relevant to the context of minimizing trips and their environmental impact. Thus, "conserve" effectively captures the intended meaning of reducing consumption and pollution.
The phrase "cut down on pollution" suggests reducing waste, making "conserve" the most suitable choice. It aligns with the idea of using fewer resources, such as fuel, to achieve environmental benefits. Option A retains the original wording, which lacks precision and clarity. Option B, "protect," implies safeguarding resources but does not directly convey the idea of reducing usage. Option D, "support," suggests encouragement or assistance, which is not relevant to the context of minimizing trips and their environmental impact. Thus, "conserve" effectively captures the intended meaning of reducing consumption and pollution.
In context, adjusting capitalization as needed, which of the following would most appropriately be inserted at the beginning of sentence 10 (reproduced below)?
The jailbreaking rats might have only been trying to silence their cohorts' distressing alarm calls
It is true that:
- A. It is true that
- B. They point out that
- C. They claim it is obvious that
- D. It appears that
Correct Answer & Rationale
Correct Answer: B
Option B, "They point out that," effectively introduces the sentence by indicating that a specific viewpoint or observation is being made about the jailbreaking rats' behavior. This phrasing suggests a direct reference to a previous argument or evidence, enhancing the clarity of the statement. Option A, "It is true that," is too vague and does not connect to any preceding discussion, making it less effective. Option C, "They claim it is obvious that," implies a level of certainty that may not be warranted, potentially misrepresenting the argument's intent. Option D, "It appears that," introduces ambiguity and weakens the assertiveness needed in this context, making it less suitable than option B.
Option B, "They point out that," effectively introduces the sentence by indicating that a specific viewpoint or observation is being made about the jailbreaking rats' behavior. This phrasing suggests a direct reference to a previous argument or evidence, enhancing the clarity of the statement. Option A, "It is true that," is too vague and does not connect to any preceding discussion, making it less effective. Option C, "They claim it is obvious that," implies a level of certainty that may not be warranted, potentially misrepresenting the argument's intent. Option D, "It appears that," introduces ambiguity and weakens the assertiveness needed in this context, making it less suitable than option B.
Which is the best version of the underlined portion of sentence 5 (reproduced below)?
Compounding the problem is that food distribution system's currently require a lot of energy.
- A. (as it is now)
- B. systems
- C. systems's
- D. systems
Correct Answer & Rationale
Correct Answer: C
The best version clarifies the possessive form needed in the sentence. "Systems" (option D) is incorrect because it lacks the possessive, which is essential to indicate ownership of the energy requirement. Option B, "systems," does not convey possession either. Option A, "as it is now," does not address the grammatical structure needed in this context. The correct choice, "systems's," correctly indicates that the energy requirement belongs to the food distribution system, ensuring clarity and grammatical accuracy in the sentence.
The best version clarifies the possessive form needed in the sentence. "Systems" (option D) is incorrect because it lacks the possessive, which is essential to indicate ownership of the energy requirement. Option B, "systems," does not convey possession either. Option A, "as it is now," does not address the grammatical structure needed in this context. The correct choice, "systems's," correctly indicates that the energy requirement belongs to the food distribution system, ensuring clarity and grammatical accuracy in the sentence.