
Reading Passage Question
Frogs react quickly and effectively to bugs that fly past them, but this by no means implies that they have a concept of 'bug.' Indeed, we can be pretty sure that they do not, or at best that their concept of 'bug' both under- and over-generalizes to a rather gross extent. For instance, they will over-generalize by snapping at bug-sized pellets that are flipped past them, but will under-generalize by totally ignoring motionless bugs even when no other food source is available. The most parsimonious explanation of their behavior is that networks of cells that respond to rapid movement and small rounded objects are directly linked to the snapping reflex, and that there is nothing more sophisticated than this inside the frog's brain.
In our case there is a very different story. Suppose that we are alone in a house late at night and hear a sound that we do not immediately identify. Unless we are in an abnormally anxious state we will not immediately respond to it. Rather we will listen intently, and try to identify the sound if it is repeated. In human terms, this means that we will try to provide a linguistic description for the sound. Only when we have done this (called it a creaking shutter, a cat trying to get out, a possible burglar, or whatever) will we take the appropriate action).
There can be little doubt that the case of the Vervet is intermediate between those of the frog and our own species. At some stage in the evolution of species, some kind of linkage began to form among those perceptions that had evolutionary consequences (life threatening or life-enhancing) for the creatures that received them, given that the perceptions caused the creature to behave in similar ways. For instance, a leopard's spots, a leopard's roar, and a leopard's smell might originally have caused reactions in quite different parts of the brain, but the fact that all provoked a similar result (flight) may have helped create a level of processing on which all three were neurally linked. Saying this is better than saying that linkages developed among perceptions of the same object or class of objects. The result was the formation of categories; rapid and accurate identification of category-membership became a crucial factor in the survival of = individuals.
“Frogs react quickly and effectively to bugs that fly past them”- is a GMAT reading comprehension exercise. Candidates need to be highly proficient in GMAT reading comprehension. There are four comprehension questions in this GMAT reading comprehension section. The purpose of the GMAT Reading Comprehension questions is to evaluate candidates' comprehension, analysis, and application skills. Candidates who are actively preparing can benefit from GMAT Reading Comprehension Practice Questions.
Solutions and Explanation
Answer: (E)
Explanation: The main topics of the passage are category formation and neural connections between various species. The final option has the perfectly suited title for this and therefore it is the right option. The rest of the options are wrong answers as they do not fit this description accurately.
Answer: (D)
Explanation: The fourth option is the correct answer. It states that It began as a result of the need for receiving creatures to process perceptions. This contained information necessary for their survival. According to Darwinian evolution, survival must be a criterion in the development of organisms.
Answer: (C)
Explanation: For this kind of question, it is necessary to understand the passage as a whole and relate it with the options. The third option is the correct answer. This passage argues that creatures use their neural resources sparingly to react to a wide range of stimuli that can either improve or endanger their lives.
Suggested GMAT Reading Comprehension Samples
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