Bio 180 Exam 4 Questions With 100%
Verified Answers
What is the most important difference between species richness
and species diversity? -
correct answer ✅Species diversity takes species number AND
relative frequency into account.
What is the key difference between primary productivity and net
primary productivity? -
correct answer ✅Net primary productivity represents just the
energy used to build biomass.
"Diversity leads to stability." This slogan claims that ecosystems
with a large number of species present are more stable than
ecosystems with a low number of species. Which of the following
lines of evidence support this claim? -
correct answer ✅As the number of plant species increases,
resistance and resilience increases
What is biomass? -
correct answer ✅total organic matter, usually measured per plant
or per square meter
Why would a sampling effect lead to higher productivity in an
experimental plot? -
,Bio 180 Exam 4 Questions With 100%
Verified Answers
correct answer ✅If a few highly productive species are present in a
community, biomass production will be a function of whether or
not they are present.
What is a functional group? -
correct answer ✅species that use resources or allocate resources
in a similar way
In biological communities, what is "resistance?" -
correct answer ✅degree of change during and after a disturbance
In biological communities, what is "resilience?" -
correct answer ✅ability to "bounce back" after a disturbance, to
the pre-disturbance conditiion
What is a "natural experiment?" -
correct answer ✅an unplanned/unmanipulated change in
environmental conditions that can be exploited to answer a
question
Both sets of data graphed in Fig. 54.12 (5th edition: Fig. 57.12) have
the same general shape. Which of the following is the best
, Bio 180 Exam 4 Questions With 100%
Verified Answers
interpretation of this pattern? -
correct answer ✅Biodiversity is beneficial, but the effects "level
off."
Which of the following is an example of commensalism? -
correct answer ✅Cattle egrets walk beside cattle, eating insects
disturbed by the movements of the cows.
What does it mean to say that a species has a wide niche breadth? -
correct answer ✅It can use a wide array of values of a particular
resource or tolerate an array of conditions.
What's the difference between a fundamental niche and a realized
niche? -
correct answer ✅potential vs. actual resources used (or conditions
tolerated)
What is the outcome of competitive exclusion? -
correct answer ✅One species is wiped out in that habitat.
Verified Answers
What is the most important difference between species richness
and species diversity? -
correct answer ✅Species diversity takes species number AND
relative frequency into account.
What is the key difference between primary productivity and net
primary productivity? -
correct answer ✅Net primary productivity represents just the
energy used to build biomass.
"Diversity leads to stability." This slogan claims that ecosystems
with a large number of species present are more stable than
ecosystems with a low number of species. Which of the following
lines of evidence support this claim? -
correct answer ✅As the number of plant species increases,
resistance and resilience increases
What is biomass? -
correct answer ✅total organic matter, usually measured per plant
or per square meter
Why would a sampling effect lead to higher productivity in an
experimental plot? -
,Bio 180 Exam 4 Questions With 100%
Verified Answers
correct answer ✅If a few highly productive species are present in a
community, biomass production will be a function of whether or
not they are present.
What is a functional group? -
correct answer ✅species that use resources or allocate resources
in a similar way
In biological communities, what is "resistance?" -
correct answer ✅degree of change during and after a disturbance
In biological communities, what is "resilience?" -
correct answer ✅ability to "bounce back" after a disturbance, to
the pre-disturbance conditiion
What is a "natural experiment?" -
correct answer ✅an unplanned/unmanipulated change in
environmental conditions that can be exploited to answer a
question
Both sets of data graphed in Fig. 54.12 (5th edition: Fig. 57.12) have
the same general shape. Which of the following is the best
, Bio 180 Exam 4 Questions With 100%
Verified Answers
interpretation of this pattern? -
correct answer ✅Biodiversity is beneficial, but the effects "level
off."
Which of the following is an example of commensalism? -
correct answer ✅Cattle egrets walk beside cattle, eating insects
disturbed by the movements of the cows.
What does it mean to say that a species has a wide niche breadth? -
correct answer ✅It can use a wide array of values of a particular
resource or tolerate an array of conditions.
What's the difference between a fundamental niche and a realized
niche? -
correct answer ✅potential vs. actual resources used (or conditions
tolerated)
What is the outcome of competitive exclusion? -
correct answer ✅One species is wiped out in that habitat.
