BIO 106 FINAL EXAM QUESTIONS
CLARRIFIED SOLUTIONS PASSED
100%
A realized niche cannot be larger than a fundamental niche - Correct Answer ✔✔ True
Plants being consumed by herbivores may emit volatile compounds that attract
predators of the herbivores - Correct Answer ✔✔ True
If a population is decreasing in size over time, its per capita growth rate is less than 1
but greater than 0 - Correct Answer ✔✔ False
Typically, 40-60% of production at one trophic level is passed on to the next trophic
level up - Correct Answer ✔✔ False
Communities that have higher species diversity tend to be more resistant to invasive
species. - Correct Answer ✔✔ True
The quality of the soil of glacial moraines changes across different stages of ecological
succession on these moraines. - Correct Answer ✔✔ True
Globally, the human per capita growth rate is increasing even though human fertility
rates are decreasing - Correct Answer ✔✔ False
There are two components of species diversity, evenness and species richness -
Correct Answer ✔✔ True
Bodies of warm water can influence terrestrial climates, making them more mild (less
cold) - Correct Answer ✔✔ True
Communities at high latitudes typically have between 5 and 10 trophic levels. - Correct
Answer ✔✔ False
Most recently, the human population has been doubling on the order of every:
a. 10 yrs
b. 25 yrs
c. 50 yrs
d. 100 yrs - Correct Answer ✔✔ c. 50 years
Which of the following is NOT predicted by the Model of Island Biogeography:
a. extinction increases as # species increases
, b. species diversity in habitats may show patterns similar to those seen on oceanic
islands
c. islands close to the continent will have more immigration
d. large islands have increased competition and higher extinction rates - Correct Answer
✔✔ d.
Our planet is tilted on its axis of rotation. If there were no such tilt to the Earth's axis,
then which of the following would be expected?
a. light intensity would be uniform across latitudes
b. there be no seasons
c. there would be no Hadley Cells
d. all of the above - Correct Answer ✔✔ b.
In a community the standing biomass of primary producers is 1000kg of carbon and the
standing biomass of secondary producers is 20kg of carbon. The trophic efficiency:
a. is 2%
b. is 5%
c. is 20%
d. cannot be calculated - Correct Answer ✔✔ d.
A mountain range runs north-south. The west side of the mountain range is dry. If this is
due to a rain shadow effect, the prevailing moist winds are expected to be blowing:
a. from north to south
b. from south to north
c. from east to west
d. from west to east - Correct Answer ✔✔ c.
Suppose you radioactively label some carbon atoms in the atmosphere so that their
movements can be tracked. Based on your knowledge of the carbon cycle, what
process or set of processes would lead to the transfer of a labeled carbon into biological
tissues?
a. photosynthesis
b. photosynthesis and respiration
c. respiration, photosynthesis, and burning of fossil fuels
d. decomposition and respiration - Correct Answer ✔✔ a.
The intermediate disturbance hypothesis states that
a. species diversity is highest at moderate levels of disturbance
b. species diversity is lowest at intermediate successional stages
c. environments with the lowest levels of disturbance have the highest species diversity
d. species diversity gradually increases as succession progresses - Correct Answer ✔✔
a.
Net primary production is:
a. the total amount of primary production in a given area
b. highest at 30 degrees latitude in terrestrial environments
CLARRIFIED SOLUTIONS PASSED
100%
A realized niche cannot be larger than a fundamental niche - Correct Answer ✔✔ True
Plants being consumed by herbivores may emit volatile compounds that attract
predators of the herbivores - Correct Answer ✔✔ True
If a population is decreasing in size over time, its per capita growth rate is less than 1
but greater than 0 - Correct Answer ✔✔ False
Typically, 40-60% of production at one trophic level is passed on to the next trophic
level up - Correct Answer ✔✔ False
Communities that have higher species diversity tend to be more resistant to invasive
species. - Correct Answer ✔✔ True
The quality of the soil of glacial moraines changes across different stages of ecological
succession on these moraines. - Correct Answer ✔✔ True
Globally, the human per capita growth rate is increasing even though human fertility
rates are decreasing - Correct Answer ✔✔ False
There are two components of species diversity, evenness and species richness -
Correct Answer ✔✔ True
Bodies of warm water can influence terrestrial climates, making them more mild (less
cold) - Correct Answer ✔✔ True
Communities at high latitudes typically have between 5 and 10 trophic levels. - Correct
Answer ✔✔ False
Most recently, the human population has been doubling on the order of every:
a. 10 yrs
b. 25 yrs
c. 50 yrs
d. 100 yrs - Correct Answer ✔✔ c. 50 years
Which of the following is NOT predicted by the Model of Island Biogeography:
a. extinction increases as # species increases
, b. species diversity in habitats may show patterns similar to those seen on oceanic
islands
c. islands close to the continent will have more immigration
d. large islands have increased competition and higher extinction rates - Correct Answer
✔✔ d.
Our planet is tilted on its axis of rotation. If there were no such tilt to the Earth's axis,
then which of the following would be expected?
a. light intensity would be uniform across latitudes
b. there be no seasons
c. there would be no Hadley Cells
d. all of the above - Correct Answer ✔✔ b.
In a community the standing biomass of primary producers is 1000kg of carbon and the
standing biomass of secondary producers is 20kg of carbon. The trophic efficiency:
a. is 2%
b. is 5%
c. is 20%
d. cannot be calculated - Correct Answer ✔✔ d.
A mountain range runs north-south. The west side of the mountain range is dry. If this is
due to a rain shadow effect, the prevailing moist winds are expected to be blowing:
a. from north to south
b. from south to north
c. from east to west
d. from west to east - Correct Answer ✔✔ c.
Suppose you radioactively label some carbon atoms in the atmosphere so that their
movements can be tracked. Based on your knowledge of the carbon cycle, what
process or set of processes would lead to the transfer of a labeled carbon into biological
tissues?
a. photosynthesis
b. photosynthesis and respiration
c. respiration, photosynthesis, and burning of fossil fuels
d. decomposition and respiration - Correct Answer ✔✔ a.
The intermediate disturbance hypothesis states that
a. species diversity is highest at moderate levels of disturbance
b. species diversity is lowest at intermediate successional stages
c. environments with the lowest levels of disturbance have the highest species diversity
d. species diversity gradually increases as succession progresses - Correct Answer ✔✔
a.
Net primary production is:
a. the total amount of primary production in a given area
b. highest at 30 degrees latitude in terrestrial environments
