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1653 4e97 98f7

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https://coursework.stanford.edu/portal/tool/1c2f43e9-1653-4e97-98f7-93a4fbb2cb09/jsf/delivery/beginTakingAssessment C. Incoming solar radiation is reflected by water on the surface of organisms D. Evaporation requires energy, and the energy involved is removed from the organism when water vapor is released Reset Selection Mark for Review What's This? Question 4 of 10 4.0 Points A major cost experienced by all organisms that regulate their body temperatures (like us) is: A. They require more food than otherwise similar organisms that do not regulate body temperatures B. They are more visible to predators like rattlesnakes that can sense heat C. It’s hard for them to be comfortable on hot nights D. They cannot be active and seek food when temperatures are well below their body temperature Reset Selection Mark for Review What's This? Question 5 of 10 4.0 Points If ! lxmx (or R) for a particular life table is equal to .8, we know that: A. The population is growing at 80% per generation B. The population is declining and doomed to extinction C. The population is declining; we cannot predict its ultimate fate D. We can’t tell if the population is growing or declining Reset Selection Mark for Review What's This? Question 6 of 10 4.0 Points Organisms with life histories that involve very short pre-reproductive periods, many offspring (produced even at a risk to parental survival), and little parental care have very high potential rates of population growth. From this perspective humans seem particularly un-fit. How can life histories with long pre-reproductive periods, few offspring, and lots of parental care persist? A. In a stable environment, life histories with few, well-provisioned, well cared for young can have a higher population growth rate than others. B. The population growth rate is irrelevant to the success of a particular life history C. Different rules apply to dominant species like us D. None of the above Reset Selection Mark for Review What's This?
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4/25/13 3:25 PM 2013 Problem Set 4 Evo Lecture 9 and Eco Lectures 10-12 Page 4 of 5 https://coursework.stanford.edu/portal/tool/1c2f43e9-1653-4e97-98f7-93a4fbb2cb09/jsf/delivery/beginTakingAssessment
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