生命科学类作为GRE阅读常考四大类型，是考生前期复习备考必须要学习的一类题材文章。GRE阅读必备题材分析之生命科学类-有机体的行为，一起来学习吧!
有机体的行为背景知识阅读。
有机体的行为可以分为三种：1.习得律，通过不断的学习，带来强化刺激;2.条件强化和泛化现象;3.消退和遗忘。
例题1选自GRE阅读绿皮书解析42道题目。
Although scientists observe that an organism’s behavior ......to affect an organism’s rhythmic behavior.
分析文章。
文章结构：论证一个观点。
TS：文章首句。
分析题目。
1. All of the following could be considered examples of exogenous influences on an organism EXCEPT the influence of the
A.level of a hormone on a field mouse's readiness for mating
B.temperature of a region on a bears hibernation
C.salt level of a river on a fish s migration
D.humidity of an area on a cat s shedding of its fur
E.proximity of an owl on o lizard s scorching for food
正确答案：(A)
2.Which of the following statements best describes the conclusion drawn by Brown
A.A change in tide schedule is the primary influence on an oyster’s rhythms.
B.A change in tide schedule may be an important exogenous influence on an oyster’s rhythms.
C.Exogenous influences, such as a change in tide schedule, seldom affect an oyster’s rhythms.
D.Endogenous influences have no effect on an oyster’s rhythms.
E.Endogenous influences are the only influences on an oyster’s rhythms.
正确答案：(B)
3.The passage suggests that Brown’s study was similar to Hamner’s in which of the following ways?
A Both experiments discovered that a new environment had a significant effect on an organism’s behavior rhythms.
B Both experiments observed an organism’s behavioral rhythms after the organism had been transported to a new environment.
C Both experimenters knew an organism’s rhythmic patterns in its original environment.
正确答案：(B)
4.Which of the following , if true, would most weaken Brown’s conclusion?
A.The oyster gradually closed their shells after high tide in Illinois had passed.
B.The oyster’s behavioral rhythms maintained their adaptation to the tide schedule in Illinois throughout thirty days of observation.
C.Sixteen days after they were moved to Illinois, the oysters opened their shells widest when it was high tide in Connecticut.
D.A scientist who brought Maryland oysters to Maine found that the oysters opened their shells widest when it was high tide in Maine.
E.In an experiment similar to Brown’s, a scientist was able to establish a clear causal relationship between environmental change and behavioral rhythms.
正确答案：(C)
例题2选自GRE NO2-1section2,第一篇。
The whole biosphere,like the individual organisms......enters into life cycles once again.
分析文章。
文章结构：论证一个观点。
TS;In this homeostatic system, a great number of organic ......the major parts of the carbon cycle。
分析题目。
1.The author implies that which of the following is the primary reason that degradation is as important as synthesis to the smooth operation of the carbon cycle?
(A) Most of the polymers and organic compounds found in the plant kingdom are chemically unstable.
(B) The synthesis of some organic material deprives life processes of an energy source.
(C) Decomposition permits the recycling of carbon that would otherwise be fixed in certain substances.
(D) Many organisms cannot use plants as a source of food, but can feed on bacteria and fungi.
(E) Bacteria and fungi could not survive if some carbon compounds were not degraded.
正确答案：(C)
分解和合成一样重要的原因，是都在生物圈中为循环起到作用，即被植物使用(属于合成)，被细菌分解(属于退化)。
以上就是关于GRE阅读必备题材分析之生命科学类-有机体的行为的经验分享，希望通过上文学习，考生可以生命科学类的题目，做到轻松的了解。
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