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Canada (161,661)
Biology (600)
BIO120H1 (305)
Chapter 9

Chapter 9 Online Textbook BIO120 2013.docx

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Department
Biology
Course
BIO120H1
Professor
James Thomson
Semester
Fall

Description
Chapter 9 10/5/2013 5:11:00 PM 9.0 Life Histories and Evolutionary Fitness CHAPTER CONCEPTS • Trade-offs in the allocation of resources provide a basis for understanding life histories • Life histories vary along a slow–fast continuum • Life histories balance trade-offs between current and future reproduction • Semelparous organisms breed once and then die • Senescence is a decline in physiological function with increasing age • Life histories respond to variation in the environment • Individual life histories are sensitive to environmental influences • Animals forage in a manner
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