Date post: 2017-10-02 13:23
67. Describe the light reactions of photosynthesis and, for both a C8 and a C9 plant, trace the path of a carbon dioxide molecule from the point at which it enters a plant to its incorporation into a glucose molecule. Include leaf anatomy and biochemical pathways in your discussion of each type of plant.
One of the uglier claims of evo psych is that men have a mental module to neglect and even kill their stepchildren. Such behavior was adaptive back when humans were evolving, goes the popular version of this argument, because men who invested in stepchildren wasted resources they could expend on their biological children. Such kindly stepfathers would, over time, leave fewer of their own descendants, causing "support your stepchildren" genes to die out. Men with genes that sculpted the "abandon stepchildren" mental module were evolutionarily fitter, so their descendants—us—also have that preprogrammed module. The key evidence for this claim comes from studies showing that stepchildren under the age of 5 are 95 times more likely to be abused than biological children.
For each of the two systems you choose, discuss the structure and function of two adaptations that aid in the transport or exchange of molecules (or ions). Be sure to relate structure to function in each example.
75. Living organisms play an important role in the recycling of many elements within an ecosystem. Discuss how various types of organisms and their biochemical reactions contribute to the recycling of either carbon or nitrogen in an ecosystem. Include in your answer one way in which human activity has an impact in the nutrient cycle you have chosen.
Over the years these arguments have attracted legions of critics who thought the science was weak and the message (what philosopher David Buller of Northern Illinois University called "a get-out-of-jail-free card" for heinous behavior) pernicious. But the reaction to the book was of a whole different order. Biologist Joan Roughgarden of Stanford University called it "the latest ''evolution made me do it'' excuse for criminal behavior from evolutionary psychologists." Feminists, sex-crime prosecutors and social scientists denounced it at rallies, on television and in the press.
66. The results below are measurements of cumulative oxygen consumption by germinating and dry seeds. Gas volume measurements were corrected for changes in temperature and pressure.
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99. Discuss the sources and actions of each of the following pairs of hormones in humans and describe the feedback mechanisms that control their release.
Choose ONE of the variables that you identified and design a controlled experiment to test your hypothetical explanation. Describe results that would support or refute your hypothesis.