A the accuracy of the commuter diatom’s biological

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Unformatted text preview: A. The accuracy of the commuter diatom’s biological clock varies according to changes in the tidal cycle. B. The unusual accuracy that characterizes the commuter diatom’s biological clock is rare among intertidal species. C. The commuter diatom’s biological clock is likely to be more accurate than the biological clock of a species that is subject to less intense environmental pressures. D. The commuter diatom’s biological clock tends to be more accurate than the biological clocks of most other species because of the consistency of the tidal cycle. E. The accuracy of the commuter diatom’s biological clock tends to fluctuate when the diatom is observed under variable laboratory conditions. Answer: -------------------------------------------------------------------------------- Q26: The author of the passage compares the relationship between an organism’s biological clock and its environment to the relation between a wristwatch and its owner most probably in order to A. point out a fundamental difference between the function of biological clocks in organisms and the use of mechanical clocks by humans B. illustrate the way in which the period of an organism’s biological clock can be altered by environmental factors C. suggest that there are important similarities between the biological clock in organisms such as the commuter diatom and the biological clock in humans D. support an argument regarding the methods used by certain organisms to counteract the influence of the environment on their biological clocks E. question the accuracy of the biological clock in organisms such as the commuter diatom Answer: --------------------------------------------------------------------------------- Q27: According to the passage, the periodic behavior displayed by commuter diatoms under constant laboratory conditions is characterized by which of the following? A. Greater unpredictability than the corresponding behavior under natural conditions B. A consistent periodic schedule in the short term C. No difference over the long term from the corresponding behavior under natural conditions D. Initial variability caused by the constant conditions of the laboratory E. Greater sensitivity to environmental factors than is the case under natural conditions 28 Answer: -------------------------------------------------------------------------------- Q28: The primary purpose of the passage is to A. dispute the influence of environmental factors on the tide-associated behavioral rhythms displayed by the diatom Hantzschia virgata B. describe how certain tide-associated behavioral rhythms displayed by the diatom Hantzschia virgata have changed over time C. compare tide-associated behavioral rhythms to solar-day behavioral rhythms in the diatom Hantzschia virgata D. examine how certain biological and environmental influences affect the tide- associated behavioral rhythms displayed by the diatom Hantzschia virgata E. identify certain environmental factors that limit the effectiveness of the biological E....
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A The accuracy of the commuter diatom’s biological clock...

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