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Unformatted text preview: Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the events described below agrees with the idea of catastrophism? 1) _______ A) The formation of the Grand Canyon by the Colorado River over millions of years B) The gradual uplift of the Himalayas by the collision of the Australian crustal plate with the Eurasian crustal plate C) The sudden demise of the dinosaurs, and various other groups, by the impact of a large extraterrestrial body with Earth D) The development of the Galapagos Islands from underwater seamounts over millions of years E) The gradual deposition of sediments many kilometers thick on the floors of seas and oceans 2) During a study session about evolution, one of your fellow students remarks, Ȉ The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result. Ȉ Which statement is most likely to be helpful in correcting this student ȇ s misconception? 2) _______ A) Disuse of an organ may lead to its eventual disappearance. B) Characteristics acquired during an organism ȇ s life are generally not passed on through genes. C) Only favorable adaptations have survival value. D) Overproduction of offspring leads to a struggle for survival. E) Spontaneous mutations can result in the appearance of new traits. SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. The following questions refer to Figure 22.1, which shows an outcrop of sedimentary rock whose strata are labeled A- D. Figure 22.1 3) Which stratum should contain the greatest proportion of extinct organisms? 3) _____________ 4) If Ȉ x Ȉ indicates the location of fossils of two closely related species, then fossils of their most- recent common ancestor are most likely to occur in which stratum? 4) _____________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 5) Charles Darwin was the first person to propose 5) _______ A) that the Earth is older than a few thousand years. B) that evolution occurs. C) a mechanism for evolution that was supported by evidence. D) a way to use artificial selection as a means of domesticating plants and animals. E) a mechanism for how evolution occurs. 6) Natural selection is based on all of the following except 6) _______ A) individuals adapt to their environments and, thereby, evolve. B) the best- adapted individuals tend to leave the most offspring. C) populations tend to produce more individuals than the environment can support. D) genetic variation exists within populations. E) individuals who survive longer tend to leave more offspring than those who die young....
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This note was uploaded on 09/08/2010 for the course BIOLOGY 182 taught by Professor Tracyscheinkman during the Summer '10 term at Pima CC.
- Summer '10