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The following GMAT questions are part of our Admission Test GMAT real exam questions full version. There are 141 in our GMAT full version. All of our GMAT real exam questions can guarantee you success in the first attempt. If you fail GMAT exam with our Admission Test GMAT real exam questions, you will get full payment fee refund. Want to practice and study full verion of GMAT real exam questions? Go now!

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The questions for GMAT were last updated on Feb 21,2025 .

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Question#1

Parasitic wasps propagate by injecting their eggs into a caterpillar that then becomes paralyzed as the eggs inside develop into wasp larvae. The wasp larvae kill the caterpillar host as they feed on it, form cocoons, and finally develop into wasps. In attempting to discover how such wasps detect the presence of the caterpillar hosts that are so critical to the wasps' propagation, researchers have uncovered an intriguing defense mechanism developed by the plants on which the caterpillars feed.
When chewed on, many plants release volatile compounds from both damaged and undamaged tissues. When these compounds are toxic to the insects that feed on the plants, they can help defend the plants from such attacks. However, the plants on which the wasps' caterpillar hosts feed have evolved an even more complex defense: the caterpillar-infested plants appear to release volatile chemicals that attract parasitic wasps, which then prey on the caterpillars. Scientists originally suspected that the wasps were attracted by an odor, reminiscent of cut grass, that is released as the caterpillar feeds, but a recent study suggests that a different set of volatile attractants is involved. In this study, when researchers used a razor blade to mimic caterpillar damage on the leaves, only grassy odors were emitted, not the volatile compounds that attracted wasps. However, when oral secretions from the caterpillars were applied to these damaged leaves, the leaves released the wasp attractants several hours later. Further tests revealed that oral secretions placed on the razor-damaged leaves stimulated the release of such attractants, making the plants as attractive to wasps as plants that had suffered actual caterpillar damage. These results suggest that chemicals from the caterpillar must be present for these attractants to be released and that unlike the grassy scent, which emanates only as the caterpillar on the plant, the wasp attractants are produced several hours after the attack and persist for several hours, perhaps days. Researchers have launched additional studies to determine whether the wasps' capacity to prey on caterpillars can be enhanced to the extent that the wasps could be used as a natural pesticide to "police" plants and protect them from crop-destroying caterpillars.
The first two sentences of the second paragraph serve primarily to

A. provide an example of a species that relies on the help of another species in defending itself against a particular predator
B. provide a point of reference against which the author's description of a related phenomenon can be compared
C. introduce a phenomenon that casts doubt on experimental results described later in the passage
D. introduce the phenomenon that the experiment described later in the passage is designed to explain
E. offer a conventional but probably inaccurate view of how many plants defend themselves from predators

Question#2

Parasitic wasps propagate by injecting their eggs into a caterpillar that then becomes paralyzed as the eggs inside develop into wasp larvae. The wasp larvae kill the caterpillar host as they feed on it, form cocoons, and finally develop into wasps. In attempting to discover how such wasps detect the presence of the caterpillar hosts that are so critical to the wasps' propagation, researchers have uncovered an intriguing defense mechanism developed by the plants on which the caterpillars feed.
When chewed on, many plants release volatile compounds from both damaged and undamaged tissues. When these compounds are toxic to the insects that feed on the plants, they can help defend the plants from such attacks. However, the plants on which the wasps' caterpillar hosts feed have evolved an even more complex defense: the caterpillar-infested plants appear to release volatile chemicals that attract parasitic wasps, which then prey on the caterpillars. Scientists originally suspected that the wasps were attracted by an odor, reminiscent of cut grass, that is released as the caterpillar feeds, but a recent study suggests that a different set of volatile attractants is involved. In this study,
when researchers used a razor blade to mimic caterpillar damage on the leaves, only grassy odors were emitted, not the volatile compounds that attracted wasps. However, when oral secretions from the caterpillars were applied to these damaged leaves, the leaves released the wasp attractants several hours later. Further tests revealed that oral secretions placed on the razor-damaged leaves stimulated the release of such attractants, making the plants as attractive to wasps as plants that had suffered actual caterpillar damage. These results suggest that chemicals from the caterpillar must be present for these attractants to be released and that unlike the grassy scent, which emanates only as the caterpillar on the plant, the wasp attractants are produced several hours after the attack and persist for several hours, perhaps days. Researchers have launched additional studies to determine whether the wasps' capacity to prey on caterpillars can be enhanced to the extent that the wasps could be used as a natural pesticide to "police" plants and protect them from crop-destroying caterpillars.
The passage is primarily concerned with doing which of the following?

A. Surveying the different mechanisms that plants adopt to defend themselves from predators
B. Citing an experiment that explains why a certain kind of organism has difficulty in locating its prey
C. Providing an example of farmers' current use of one insect to prey on another that damages their crops
D. Describing an instance in which one kind of organism exploits the behavior of another kind of organism in order to protect itself from a predator
E. Describing an instance in which one kind of organism defends itself from predators by mimicking the behavior of another kind of organism

Question#3

For the first time, prospectors have laid claim to rich deposits of gold, silver, and copper in the deep sea, foreshadowing a possible rush to the open oceans for metals and a possible fight with conservationists over exploitation of the sea's dark recesses.

A. prospectors have laid claim to rich deposits of gold, silver, and copper in the deep sea, foreshadowing a possible rush to the open oceans for metals and a possible fight
B. prospectors have laid claim to rich deposits of gold, silver, and copper in the deep sea, which foreshadows a possible rush to the open oceans for metals and possibly a fight
C. prospectors have laid claim to rich deposits of gold, silver, and copper in the deep sea, foreshadowing a possible rush to the open oceans for metals and possibly fighting
D. prospectors, having laid claim to rich deposits of gold, silver, and copper in the deep sea, and foreshadowing a possible rush to the open oceans for metals and a possible fight
E. prospectors having laid claim to rich deposits of gold, silver, and copper in the deep sea foreshadows a possible rush to the open oceans for metals and possibly fighting

Question#4

The real estate company pleaded guilty in a district court in failing to report all of the profits from the sale of land for the new shopping mall.

A. in failing to report
B. for the charge of its failure to report
C. for its failure in reporting
D. to its failure in reporting
E. to the charge of failing to report

Question#5

When new regulations were imposed on businesses selling in the same markets as Acme Inc. and the demographics began to change unfavorably for its main product: there was very little that it could have done different in the short term.

A. product; there was very little that it could have done different in the short term
B. product, there was very little they could have done different in the short term
C. product, so there was very little could be done differently by the firm in the short term
D. product, there was very little possible in the short term for them to do differently
E. product, there was very little that the firm could have done differently in the short term

Exam Code: GMATQ & A: 141 Q&AsUpdated:  Feb 21,2025

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