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Practice Test: Reading Comprehension - 90 | 100 RCs for GMAT PDF Download

Directions: Read the given passage carefully and answer the questions as follows:

Passage

Australian researchers have discovered electroreceptors (sensory organs designed to respond to electrical fields) clustered at the tip of the spiny anteater’s snout. The researchers made this discovery by exposing small areas of the snout to extremely weak electrical fields and recording the transmission of resulting nervous activity to the brain. While it is true that tactile receptors, another kind of sensory organ on the anteater’s snout, can also respond to electrical stimuli, such receptors do so only in response to electrical field strengths about 1,000 times greater than those known to excite electroreceptors.

Having discovered the electroreceptors, researchers are now investigating how anteaters utilize such a sophisticated sensory system. In one behavioral experiment, researchers successfully trained an anteater to distinguish between two troughs of water, one with a weak electrical field and the other with none. Such evidence is consistent with researchers’ hypothesis that anteaters use electroreceptors to detect electrical signals given off by prey; however, researchers as yet have been unable to detect electrical signals emanating from termite mounds, where the favorite food of anteaters live. Still, researchers have observed anteaters breaking into a nest of ants at an oblique angle and quickly locating nesting chambers. This ability quickly to locate unseen prey suggests, according to the researchers, that the anteaters were using their electroreceptors to locate the nesting chambers.

Question for Practice Test: Reading Comprehension - 90
Try yourself:The passage suggests that the researchers mentioned in the second paragraph who observed anteaters break into a nest of ants would most likely agree with which of the following statements?
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Question for Practice Test: Reading Comprehension - 90
Try yourself:According to the passage, which of the following is a characteristic that distinguishes electroreceptors from tactile receptors?
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Question for Practice Test: Reading Comprehension - 90
Try yourself:The author of the passage most probably discusses the function of tactile receptors (lines 7-11) in order to
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Question for Practice Test: Reading Comprehension - 90
Try yourself:Which of the following, if true, would most strengthen the hypothesis mentioned in lines 17-19?
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Question for Practice Test: Reading Comprehension - 90
Try yourself:Which of the following can be inferred about the experiment described in the first paragraph?
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Question for Practice Test: Reading Comprehension - 90
Try yourself:Which of the following can be inferred about anteaters from the behavioral experiment mentioned in the second paragraph?
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