ECOL 1000 Exam 1 UGA Conelly QUESTIONS WITH ANSWERS.

ECOL 1000 Exam 1 UGA Conelly |\ |\ |\ |\ |\ |\




QUESTIONS WITH ANSWERS |\ |\




Ecology - CORRECT ANSWERS ✔✔-the scientific study of
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interactions between organism and their environments that |\ |\ |\ |\ |\ |\ |\


determine distribution, abundance, and the impacts of
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organisms. |\




***ORGANISM, ENVIRONMENT, INTERACTIONS*** |\ |\




-the branch of science dealing with the relationships of living
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things to one another and to their environment (situations are
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viewed value-free) |\




Abiotic - CORRECT ANSWERS ✔✔non-living parts of an ecosystem
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Biotic - CORRECT ANSWERS ✔✔living parts of an ecosystem
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Environmental Science - CORRECT ANSWERS ✔✔-the study of all |\ |\ |\ |\ |\ |\ |\ |\ |\


aspects of the environment, including physical, chemical, and
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biological factors, particularly with respect to how these aspects
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affect humans and vice versa.
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-the study of ecological problems in the human context, including
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economics, politics, moral values, etc. (situations may be judged
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as good or bad)
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World Population and US Population - CORRECT ANSWERS ✔✔7
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billion, 324 million |\ |\

,David Attenborough video - CORRECT ANSWERS ✔✔-World
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Wildlife Fund -> Worldwide Fund for Nature (WWF)
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-"there cannot be more people on this earth than can be fed
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-population growth underlying factor for global problems and |\ |\ |\ |\ |\ |\ |\ |\


deteriorating planet of resources . -A finite planet human |\ |\ |\ |\ |\ |\ |\ |\ |\


population will stop at some point. |\ |\ |\ |\ |\




-to solve: |\




1) contraception
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2) increased death rate
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European Starlings - CORRECT ANSWERS ✔✔Guy wanted every |\ |\ |\ |\ |\ |\ |\ |\


bird in Shakespeare to be in Central Park, so released 60 starlings
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into the park. Did not think about long term ramifications: they
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eat everything and reproduce really really fast. If population were
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driven by birthrate only 15 years later there would've been over
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100,000 birds. |\




4 things that change population - CORRECT ANSWERS ✔✔1) Birth
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+
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2) Immigration +
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3) Death -|\ |\




4) Emigration -
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*change in N = B + I - D - E |\ |\ |\ |\ |\ |\ |\ |\ |\ |\




What does "N" stand for? - CORRECT ANSWERS ✔✔population
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, What are the two models of population growth? - CORRECT
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ANSWERS ✔✔-Exponential (Logistic) growth |\ |\ |\




-Geometric growth |\




Exponential (Logistic) growth - CORRECT ANSWERS ✔✔used for |\ |\ |\ |\ |\ |\ |\ |\


populations with continuous reproduction and/or overlapping |\ |\ |\ |\ |\ |\


generations


geometric growth - CORRECT ANSWERS ✔✔used for populations|\ |\ |\ |\ |\ |\ |\ |\


with reproduction occurring at discrete intervals
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rate of change in population formula - CORRECT ANSWERS
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✔✔dN/dt = rN |\ |\




What does dN stand for? - CORRECT ANSWERS ✔✔rate of change
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in population size
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What does dt stand for? - CORRECT ANSWERS ✔✔time
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What does rN stand for? - CORRECT ANSWERS ✔✔per-capital
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growth rate (exponential) |\ |\




In words dN/dt = - CORRECT ANSWERS ✔✔the change in
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population size through time |\ |\ |\




r = - CORRECT ANSWERS ✔✔the growth rate (difference between
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births and deaths)
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