PrepTest 81, Section 2, Question 7
Naturalist: Different nonhuman primate species exhibit many contrasts in behavior. If a zookeeper leaves a screwdriver within reach of a chimpanzee, the animal is likely to examine and play with it for a time, and then move on to something else. In the same circumstances, an orangutan is likely to pretend to ignore the tool at first; later, in the zookeeper's absence, the orangutan may use the screwdriver to try to dismantle its cage.
Naturalist: Different nonhuman primate species exhibit many contrasts in behavior. If a zookeeper leaves a screwdriver within reach of a chimpanzee, the animal is likely to examine and play with it for a time, and then move on to something else. In the same circumstances, an orangutan is likely to pretend to ignore the tool at first; later, in the zookeeper's absence, the orangutan may use the screwdriver to try to dismantle its cage.
Naturalist: Different nonhuman primate species exhibit many contrasts in behavior. If a zookeeper leaves a screwdriver within reach of a chimpanzee, the animal is likely to examine and play with it for a time, and then move on to something else. In the same circumstances, an orangutan is likely to pretend to ignore the tool at first; later, in the zookeeper's absence, the orangutan may use the screwdriver to try to dismantle its cage.
Naturalist: Different nonhuman primate species exhibit many contrasts in behavior. If a zookeeper leaves a screwdriver within reach of a chimpanzee, the animal is likely to examine and play with it for a time, and then move on to something else. In the same circumstances, an orangutan is likely to pretend to ignore the tool at first; later, in the zookeeper's absence, the orangutan may use the screwdriver to try to dismantle its cage.
Which one of the following is most strongly supported by the naturalist's statements?
Orangutans are the most intelligent of nonhuman primates.
Orangutans have better memories than chimpanzees have.
Some nonhuman primates are capable of deception.
Orangutans dislike being caged more than chimpanzees do.
Not all nonhuman primates understand tool use.
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