Exam (elaborations)
ASU BIO 182 Exam 3 Latest Updated.
- Course
- BIO 182
- Institution
- Arizona State University
ASU BIO 182 Exam 3 Latest Updated.
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ASU BIO 182 Exam 3 Latest UpdatedWhat is a resource? - answer-Any substance an organism requires to survive or
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reproduce. Ex) food, water, mates shelter, nutrients, oxygen/co2
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What factors determine prey choice? - answer-Energy content, encounter rate, handling
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time, search cost
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Profitability - answer-(energy / handling time) n n n n n
animals = high profitability n n n
fruits/veggies = low profitability n n n
Why not grow to largest population size possible? - answer-• Many die before having
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nchance to reproduce n n
• All else being equal, early reproducers leave more decedents. Earlier you reproduce,
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nthe earlier your children can reproduce
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Energy budget - answer-Maintenance, production, activity
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Why is reproduction costly? - answer-• Energy for mating, gametes, and parental care
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• Exposure to predators & impaired locomotion
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• Missed opportunity to feed & thermoregulate
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population - answer-group of species living in a given area
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Sampling - answer-count individuals in a few small areas & extrapolate for the entire
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area
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Mark & recapture - answer-Capture, mark & release individuals. Resample & record
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number of marked and unmarked individuals
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Why is human population growing exponentially? - answer-Resouces, medicine,
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sanitation, technology
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Competitive exclusion principle - answer-species competing for identical resources
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cannot exist
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Niche partitioning - answer-niches appear to differ among sympatric species
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