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ENSC Final Exam with Questions Solved 100% Correct| Verified

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ENSC Final Exam with Questions Solved 100% Correct| Verified

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  • September 16, 2024
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ENSC Final Exam with Questions Solved 100%
Correct| Verified

Which of the following biogeochemical cycles does not have an atmospheric phase? -
✔✔Phosphorous cycle



Which of the following would not be an act of predation? - ✔✔A crow feeding on a road-kill
rabbit



Evolution occurs as a result of - ✔✔Better survival or reproduction rates by individuals with a
particular characteristic



Natural selection will ultimately make a species - ✔✔Better adapted to its environment


Use the following example:
A species can withstand a narrow range of temperature. Above 100°F there are no species
present. In the range from 97°F to 100°F and 90°F to 94°F there are a few species present.
Below 90°F there are no species present.
What would you label the range of temperature from 90°F to 94°F for this particular species? -
✔✔Zone of physiological stress



Complexity in an ecological community has to do with the number of - ✔✔Species at each
trophic level


"Abundance" describes the total number of _________ while "diversity" describes the number
of _________. - ✔✔Organisms in a community; species in a community



A keystone species is a species whose presence - ✔✔Influences the population size of many
other species in its community

,A viceroy butterfly that closely resembles the bad tasting monarch is an example of
__________, and the example of beetles that look like stinging wasps is an example of
__________. - ✔✔Batesian mimicry; Batesian mimicry



Symbiosis means - ✔✔Living together



Intraspecific competition is competition among ________ for resources - ✔✔members of a
single species


Resource partitioning leads species to
a. Feed at different times
b. Utilize slightly different prey
c. Develop different physiological adaptations
d. Live in slightly different regions

e. All of these would be a result of resource partitioning - ✔✔E. All of these



Biomes exhibit __________ patterns in habitat characteristics - ✔✔latitudinal



The boreal forest is - ✔✔dominated by coniferous trees.



Vertical zonation refers to - ✔✔vegetation zones defined by elevation.



Tundra biomes occur - ✔✔At high latitudes and altitudes, where the growing season is short



If an organism is described as 'benthic," where does it reside? - ✔✔At the bottom of the
ocean or a lake

, The thermocline is the layer in a lake at which - ✔✔The warm upper zone meets the cold
lower zone



Wetlands are biomes that - ✔✔Are wet at least some of the year


The biome type that has lost the greatest percentage of its original area due to human activities
is the - ✔✔temperate deciduous forest



Exponential growth in a population - ✔✔refers to an increase by a constant percentage each
year.



Logistic strategies are better adapted to - ✔✔fairly stable environments.



In the context of population growth regulation, intrinsic factors are those that - ✔✔operate
within or between organisms



Density-independent factors tend to be - ✔✔more associated with abiotic factors



The carrying capacity of a habitat refers to - ✔✔the number of animals that the habitat can
support


Conservation biologists refer to the number of individuals needed for long-term survival as -
✔✔the minimum viable population size



Exponential growth would be represented by a ____ curve? - ✔✔J-shaped curve


Which of the following types of population growth patterns would best represent a group of
elephants that enter a new, open habitat and become a stable part of that ecosystem? -
✔✔Logistic growth

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