BSC 340 Final Exam Questions and Answers Already Passed Latest Update 2025-2026
National Forests were primarily established to - Answers Manage timber production
Seals were harvested at a high rate after European colonization. This is an example of: -
Answers Intense exploitation
What happened to Hetch Hetchy? - Answers A dam was built to create a reservoir for water and
power generation
What was the conflict over Hetch Hetchy about? - Answers Creating a reservoir for municipal
water
The kind of hunting that led to intense exploitation and, in some cases, extinction was: -
Answers Market hunting
What is the utilitarian approach to natural resource conservation? - Answers Use resources to
benefit people
The passenger pigeon - Answers went extinct
Select the practices that were used by indigenous communities - Answers -Use fire to
discourage plant diseases and pests
-Use fire to clear underbrush
-Create a diverse combination of vegetation types on the landscape
-Use fire to encourage the growth of useful plant and animal populations
Interactions between marine ecosystems and commercial fishers - Answers Coupled human
and natural system
Indigenous depopulation opened opportunities for colonial settlements, creating opportunities
for more disease outbreaks - Answers Positive feedback loop
Effects of an initial change are damped out by subsequent changes, with the result that the
system reverts to its original condition - Answers Negative feedback loop
CO2 concentrations in the atmosphere reach a level leading to a sudden transition between
alternate regimes in an ecosystem - Answers Tipping point
Gifford Pinchot - Answers Worked as a forest manager at Biltmore and with the Forest Service
Non-native herbivores were introduced after European colonization. This is an example of: -
Answers Change in community composition
Match whether or not each attribute makes a species vulnerable - Answers Endemic =
,vulnerable
Large home range = vulnerable
Specialist = vulnerable
Small population size = vulnerable
Large geographic range = not vulnerable
High reproductive rate = not vulnerable
High genetic diversity = not vulnerable
Strong competitor = not vulnerable
[A] can prevent scientists from obtaining [B], so scientists can use [C] from those areas instead
and use [D] to estimate additional features about those areas. - Answers A = Weather
B = Aerial photographs
C = Satellite Imagery
D = Models
When a population experiences density-dependence, which are most likely at high densities? -
Answers -Intraspecific competition is high
-Mortality is high
-Population growth rate is low
In the Log Equation Nt = ..... What is N0? - Answers N0 = initial population size
Group of organisms of the same species occupying a defined area during a specific time -
Answers Population
, Assemblage of interacting populations of different species - Answers Community
Graph that increases to a carrying capacity
Nt = (long fractional equation) - Answers Logistic Growth
Graph that increases exponentially
Nt = N0e^rt - Answers Exponential Growth
Monitoring emperor penguins can give scientists insights into - Answers -Effects of climate
change
-Fish, squid, and krill populations
Fast ice is - Answers Fastened to the continent and used by penguins for breeding
r = 0.5 so we know the population is - Answers Increasing
Estimating and modeling emperor penguin population trends over time can give scientists
information about - Answers -The number of emperor penguins in different areas
-What environmental conditions might be affecting emperor penguin populations
-Whether populations are increasing, stable, or decreasing
An ecosystem is a - Answers System formed by the interaction of a community of organisms
with each other and with their physical environment
Which kinds of human consumption may contribute to zoonotic diseases? - Answers -Bushmeat
used as luxury items by the wealthy
-Bushmeat used as protein by the poor
-Demand for items built from luxury woods
What is a zoonotic disease? - Answers A disease caused by a pathogen that jumped from a non-
human animal to a human.
The population last year was 265,692. During the last year 1,632 died, 2,672 were born, 667
immigrated, 155 emigrated. What is the population size now?
Nt+1 = Nt + Bt + It - Dt - Et
Nt = N0 * exp(rt)
Nt = K/(1+((K-N0)/N0 ) * exp(-rt)) - Answers 265,692 - 1,632 + 2,672 + 667 - 155
National Forests were primarily established to - Answers Manage timber production
Seals were harvested at a high rate after European colonization. This is an example of: -
Answers Intense exploitation
What happened to Hetch Hetchy? - Answers A dam was built to create a reservoir for water and
power generation
What was the conflict over Hetch Hetchy about? - Answers Creating a reservoir for municipal
water
The kind of hunting that led to intense exploitation and, in some cases, extinction was: -
Answers Market hunting
What is the utilitarian approach to natural resource conservation? - Answers Use resources to
benefit people
The passenger pigeon - Answers went extinct
Select the practices that were used by indigenous communities - Answers -Use fire to
discourage plant diseases and pests
-Use fire to clear underbrush
-Create a diverse combination of vegetation types on the landscape
-Use fire to encourage the growth of useful plant and animal populations
Interactions between marine ecosystems and commercial fishers - Answers Coupled human
and natural system
Indigenous depopulation opened opportunities for colonial settlements, creating opportunities
for more disease outbreaks - Answers Positive feedback loop
Effects of an initial change are damped out by subsequent changes, with the result that the
system reverts to its original condition - Answers Negative feedback loop
CO2 concentrations in the atmosphere reach a level leading to a sudden transition between
alternate regimes in an ecosystem - Answers Tipping point
Gifford Pinchot - Answers Worked as a forest manager at Biltmore and with the Forest Service
Non-native herbivores were introduced after European colonization. This is an example of: -
Answers Change in community composition
Match whether or not each attribute makes a species vulnerable - Answers Endemic =
,vulnerable
Large home range = vulnerable
Specialist = vulnerable
Small population size = vulnerable
Large geographic range = not vulnerable
High reproductive rate = not vulnerable
High genetic diversity = not vulnerable
Strong competitor = not vulnerable
[A] can prevent scientists from obtaining [B], so scientists can use [C] from those areas instead
and use [D] to estimate additional features about those areas. - Answers A = Weather
B = Aerial photographs
C = Satellite Imagery
D = Models
When a population experiences density-dependence, which are most likely at high densities? -
Answers -Intraspecific competition is high
-Mortality is high
-Population growth rate is low
In the Log Equation Nt = ..... What is N0? - Answers N0 = initial population size
Group of organisms of the same species occupying a defined area during a specific time -
Answers Population
, Assemblage of interacting populations of different species - Answers Community
Graph that increases to a carrying capacity
Nt = (long fractional equation) - Answers Logistic Growth
Graph that increases exponentially
Nt = N0e^rt - Answers Exponential Growth
Monitoring emperor penguins can give scientists insights into - Answers -Effects of climate
change
-Fish, squid, and krill populations
Fast ice is - Answers Fastened to the continent and used by penguins for breeding
r = 0.5 so we know the population is - Answers Increasing
Estimating and modeling emperor penguin population trends over time can give scientists
information about - Answers -The number of emperor penguins in different areas
-What environmental conditions might be affecting emperor penguin populations
-Whether populations are increasing, stable, or decreasing
An ecosystem is a - Answers System formed by the interaction of a community of organisms
with each other and with their physical environment
Which kinds of human consumption may contribute to zoonotic diseases? - Answers -Bushmeat
used as luxury items by the wealthy
-Bushmeat used as protein by the poor
-Demand for items built from luxury woods
What is a zoonotic disease? - Answers A disease caused by a pathogen that jumped from a non-
human animal to a human.
The population last year was 265,692. During the last year 1,632 died, 2,672 were born, 667
immigrated, 155 emigrated. What is the population size now?
Nt+1 = Nt + Bt + It - Dt - Et
Nt = N0 * exp(rt)
Nt = K/(1+((K-N0)/N0 ) * exp(-rt)) - Answers 265,692 - 1,632 + 2,672 + 667 - 155
