BIO 301 Final Exam questions with answers

BIO 301 Final Exam questions with
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answers

Population models assumptions - CORRECT ANSWERS
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✔✔closed population and continuous growth pattern.
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4 factors that change population - CORRECT ANSWERS
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✔✔# of births, deaths, immigrants and emmirgrants
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N (t+1) = - CORRECT ANSWERS ✔✔Nt + B - D + I -E
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instantaneous rate of population growth (dn/dt) - |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔= rN |\ |\ |\




Nt = - CORRECT ANSWERS ✔✔N0 e^rt
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density independent factors - CORRECT ANSWERS
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✔✔limiting factors whose influence is not affected by
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population density (precipitation and temp.) |\ |\ |\ |\




density dependent factors - CORRECT ANSWERS
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✔✔limiting factor that depends on population size
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(resource limitation) |\

,resource limitation on carrying capacity - CORRECT
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ANSWERS ✔✔K |\




as N approaches 0 - CORRECT ANSWERS ✔✔exponential
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growth


as N approaches K - CORRECT ANSWERS ✔✔growth
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decreases (slope = 0) |\ |\ |\




If N=K - CORRECT ANSWERS ✔✔growth stops
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exponential growth shape - CORRECT ANSWERS ✔✔J |\ |\ |\ |\ |\ |\ |\



curve


logistic growth shape - CORRECT ANSWERS ✔✔S-shaped
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What type of growth is human growth - CORRECT
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ANSWERS ✔✔exponential |\




types of competition - CORRECT ANSWERS
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✔✔exploitative and interference |\ |\

,exploitative competition - CORRECT ANSWERS ✔✔limiting
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resources, indirect interaction, may lead to competitive
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exclusion


competitive exclusion - CORRECT ANSWERS ✔✔Strong
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competition can lead to local elimination of one of the
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species.


resource partitioning - CORRECT ANSWERS ✔✔When
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species divide a niche to avoid competition for resources
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(different lizards on different parts of trees)
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interference competition - CORRECT ANSWERS |\ |\ |\ |\ |\



✔✔limiting resource and direct interference
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niche - CORRECT ANSWERS ✔✔physical and biological
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conditions an organism requires to live
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fundamental niche - CORRECT ANSWERS ✔✔conditions |\ |\ |\ |\ |\ |\



organism can theoretically live in
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realized niche - CORRECT ANSWERS ✔✔conditions
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organism actually lives in |\ |\ |\

, Joseph Connell's experiment - CORRECT ANSWERS
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✔✔Chthamalus lives in a realized niche (in the upper part |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



of rock) when Semibalanus (never in upper part)
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Intermediate disturbance hypothesis - CORRECT |\ |\ |\ |\ |\



ANSWERS ✔✔the hypothesis that ecosystems |\ |\ |\ |\ |\



experiencing intermediate levels of disturbance are more |\ |\ |\ |\ |\ |\ |\



diverse than those with high or low disturbance levels
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result of interspecific competition - CORRECT ANSWERS
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✔✔competitive exclusion, resource portioning, character |\ |\ |\ |\ |\



displacement


mutalism - CORRECT ANSWERS ✔✔both species benefit
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predation/parasitism - CORRECT ANSWERS ✔✔one |\ |\ |\ |\ |\



species benefits and the other is harmed or affected
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competiton - CORRECT ANSWERS ✔✔both species are |\ |\ |\ |\ |\ |\ |\



negatively affected |\




commensalism - CORRECT ANSWERS ✔✔A relationship |\ |\ |\ |\ |\ |\



between two organisms in which one organism benefits
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and the other is unaffected
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