BIOEE 1610 Prelim 2 Exam Questions and answers (202472025)
Competition between individuals of the same species is which type of competition -
✔✔Intraspecific competition
A single algal species competes for a required resource, silicate. As the number of
individuals increases, there is less silicate available for the original individuals. This is
an example of: - ✔✔Exploitation (competition)
Snowy plovers, a coastal bird species, are found to live only on sandy beaches. Where
snowy plovers live is referred to as their: - ✔✔Habitat
Competition between individuals of the same species can have effects on their
________. - ✔✔Survival
Growth
Reproduction
Access to mates
For any given species, there is a _______, which describes the niche that occurs under
normal circumstances of interspecific competition within a community and typically
differs from the hypothetical ______, which describes the niche that the species would
inhabit if interspecific competition was removed. - ✔✔Realized niche, fundamental niche
The Competitive Exclusion Principle states that - ✔✔If two competing species coexist in
a stable environment, then they do so as a result of niche differentiation.
A gopher digs a hole in a patch of grass
amensalism - ✔✔amensalism
A cow eats grass - ✔✔exploitation
A beaver makes a dam which creates habitat for a species of fish - ✔✔commensalism
A hummingbird pollinates a flower while it ingests nectar - ✔✔mutalism
A raccoon and a crow fight over some edible garbage - ✔✔competition
A sparrow and a squirrel forage for different foods in the same forest but do not interact
or affect one another - ✔✔neutralism
The breeding sites of Virginia's warbler and orange-crowned warblers overlap in central
Arizona. When one species was experimentally removed, the remaining species fledged
greater percentages of young per nest. The experimental removal of one species
indicates that - ✔✔There is interspecific competition.
, All else being equal, species that have a greater overlap in resource utilization curves
are more likely to be stronger competitors than species that have little overlap in
resource utilization curves.
Correct! True - ✔✔True
What does the Competitive Exclusion Principle state? - ✔✔The Competitive Exclusion
Principle states that if two competing species coexist in a stable environment, then they
do so as a result of differentiation of their realized niches.
You determine that two species of birds coexist in the same tree, but that they have
different feeding behaviors that prevents them from competing with one another for
resources. One bird species feeds on insects found in the bark of this tree, while the
other bird species feeds on insects at the branch tips. One explanation of your
observation could be that: - ✔✔Coexistence is due to niche differentiation.
In a two-species interaction, one species is a better competitor than the other. The
weaker competitor may be able to persist if... - ✔✔It is better at something some time,
some where, or some how.
Which of the following is true? - ✔✔A realized niche is typically smaller than a
fundamental niche
A niche for a species of salamander is determined by the density of individuals in the
area, soil temperature, amounts of precipitation, and food availability. Thus, the niche
would be modeled as a: - ✔✔a four-dimensional niche
There is a species of sparrow in the forest. One day a new species of sparrow is
introduced from another continent. Both species eat nearly the same size of seeds.
Which of the following are possible outcomes of their interaction? - ✔✔Character
displacement results in the sparrows eating slightly different sizes of seeds and the
species coexist.
Resource partitioning results in the sparrows eating slightly different sizes of seeds and
the species coexist.
Competitive exclusion results in one species driving the other locally extinct
Which type of organism attacks their prey, kills it, and then consumes it? - ✔✔True
Predator
Which type of organism typically does not kill their prey, but consumes part of each prey
item, and does not need a host? - ✔✔Grazer
What type of organism relies on a host, but it does not usually kill it? - ✔✔Parasite
Competition between individuals of the same species is which type of competition -
✔✔Intraspecific competition
A single algal species competes for a required resource, silicate. As the number of
individuals increases, there is less silicate available for the original individuals. This is
an example of: - ✔✔Exploitation (competition)
Snowy plovers, a coastal bird species, are found to live only on sandy beaches. Where
snowy plovers live is referred to as their: - ✔✔Habitat
Competition between individuals of the same species can have effects on their
________. - ✔✔Survival
Growth
Reproduction
Access to mates
For any given species, there is a _______, which describes the niche that occurs under
normal circumstances of interspecific competition within a community and typically
differs from the hypothetical ______, which describes the niche that the species would
inhabit if interspecific competition was removed. - ✔✔Realized niche, fundamental niche
The Competitive Exclusion Principle states that - ✔✔If two competing species coexist in
a stable environment, then they do so as a result of niche differentiation.
A gopher digs a hole in a patch of grass
amensalism - ✔✔amensalism
A cow eats grass - ✔✔exploitation
A beaver makes a dam which creates habitat for a species of fish - ✔✔commensalism
A hummingbird pollinates a flower while it ingests nectar - ✔✔mutalism
A raccoon and a crow fight over some edible garbage - ✔✔competition
A sparrow and a squirrel forage for different foods in the same forest but do not interact
or affect one another - ✔✔neutralism
The breeding sites of Virginia's warbler and orange-crowned warblers overlap in central
Arizona. When one species was experimentally removed, the remaining species fledged
greater percentages of young per nest. The experimental removal of one species
indicates that - ✔✔There is interspecific competition.
, All else being equal, species that have a greater overlap in resource utilization curves
are more likely to be stronger competitors than species that have little overlap in
resource utilization curves.
Correct! True - ✔✔True
What does the Competitive Exclusion Principle state? - ✔✔The Competitive Exclusion
Principle states that if two competing species coexist in a stable environment, then they
do so as a result of differentiation of their realized niches.
You determine that two species of birds coexist in the same tree, but that they have
different feeding behaviors that prevents them from competing with one another for
resources. One bird species feeds on insects found in the bark of this tree, while the
other bird species feeds on insects at the branch tips. One explanation of your
observation could be that: - ✔✔Coexistence is due to niche differentiation.
In a two-species interaction, one species is a better competitor than the other. The
weaker competitor may be able to persist if... - ✔✔It is better at something some time,
some where, or some how.
Which of the following is true? - ✔✔A realized niche is typically smaller than a
fundamental niche
A niche for a species of salamander is determined by the density of individuals in the
area, soil temperature, amounts of precipitation, and food availability. Thus, the niche
would be modeled as a: - ✔✔a four-dimensional niche
There is a species of sparrow in the forest. One day a new species of sparrow is
introduced from another continent. Both species eat nearly the same size of seeds.
Which of the following are possible outcomes of their interaction? - ✔✔Character
displacement results in the sparrows eating slightly different sizes of seeds and the
species coexist.
Resource partitioning results in the sparrows eating slightly different sizes of seeds and
the species coexist.
Competitive exclusion results in one species driving the other locally extinct
Which type of organism attacks their prey, kills it, and then consumes it? - ✔✔True
Predator
Which type of organism typically does not kill their prey, but consumes part of each prey
item, and does not need a host? - ✔✔Grazer
What type of organism relies on a host, but it does not usually kill it? - ✔✔Parasite
