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ENSC Final Exam with Questions Solved 100% Correct| Verified
ENSC Final Exam with Questions Solved 100% Correct| Verified
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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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