PCB 3043 Chapter 12 Exam Questions with Correct Answers Latest Update 2025/2026
Classify each statement according to whether it applies to the exponential or geometric growth
model:
includes e, the base of natural log - Answers Exponential growth model
Classify each statement according to whether it applies to the exponential or geometric growth
model:
assumes continuous growth over a period of time - Answers Exponential growth model
Classify each statement according to whether it applies to the exponential or geometric growth
model:
includes λ, the ratio of population sizes from year to year - Answers Geometric growth model
Classify each statement according to whether it applies to the exponential or geometric growth
model:
assumes growth at specific intervals over a period of time - Answers Geometric growth model
When the intrinsic growth rate (r) of a population equals zero, the population size after one year
(N1) is _______ the initial population size (N0).
Therefore, the annual growth rate (λ) of the population equals _______. - Answers When the
intrinsic growth rate (r) of a population equals zero, the population size after one year (N1) is
EQUAL TO the initial population size (N0).
Therefore, the annual growth rate (λ) of the population equals 1.
Select the population growth model for a small group of white-tailed deer, which give birth each
spring.
-exponential growth
, -linear growth
-logistic growth
-geometric growth - Answers Geometric growth
Why is the selected model of population growth appropriate for white-tailed deer?
-It models species that reproduce at discrete intervals.
-It models species that reproduce at very slow rates.
-It models species that reproduce continuously.
-It models species that have strict limits to their population sizes. - Answers -It models species
that reproduce at discrete intervals.
Classify each statement as describing a stable population of bears or a population of bears with
a stable age distribution:
Over multiple years, the total number of bears in the population does not change as the
proportion of cubs to adults decreases. - Answers Stable population
Classify each statement as describing a stable population of bears or a population of bears with
a stable age distribution:
A population size holds constant from one year to the next as the proportion of cubs to adults
changes. - Answers Stable population
Classify each statement as describing a stable population of bears or a population of bears with
a stable age distribution:
The proportion of cubs to adults remains constant in a bear population that declines in size
each year. - Answers Stable age distribution
Classify each statement as describing a stable population of bears or a population of bears with
a stable age distribution:
From one year to the next, a growing population consistently has about three times as many
Classify each statement according to whether it applies to the exponential or geometric growth
model:
includes e, the base of natural log - Answers Exponential growth model
Classify each statement according to whether it applies to the exponential or geometric growth
model:
assumes continuous growth over a period of time - Answers Exponential growth model
Classify each statement according to whether it applies to the exponential or geometric growth
model:
includes λ, the ratio of population sizes from year to year - Answers Geometric growth model
Classify each statement according to whether it applies to the exponential or geometric growth
model:
assumes growth at specific intervals over a period of time - Answers Geometric growth model
When the intrinsic growth rate (r) of a population equals zero, the population size after one year
(N1) is _______ the initial population size (N0).
Therefore, the annual growth rate (λ) of the population equals _______. - Answers When the
intrinsic growth rate (r) of a population equals zero, the population size after one year (N1) is
EQUAL TO the initial population size (N0).
Therefore, the annual growth rate (λ) of the population equals 1.
Select the population growth model for a small group of white-tailed deer, which give birth each
spring.
-exponential growth
, -linear growth
-logistic growth
-geometric growth - Answers Geometric growth
Why is the selected model of population growth appropriate for white-tailed deer?
-It models species that reproduce at discrete intervals.
-It models species that reproduce at very slow rates.
-It models species that reproduce continuously.
-It models species that have strict limits to their population sizes. - Answers -It models species
that reproduce at discrete intervals.
Classify each statement as describing a stable population of bears or a population of bears with
a stable age distribution:
Over multiple years, the total number of bears in the population does not change as the
proportion of cubs to adults decreases. - Answers Stable population
Classify each statement as describing a stable population of bears or a population of bears with
a stable age distribution:
A population size holds constant from one year to the next as the proportion of cubs to adults
changes. - Answers Stable population
Classify each statement as describing a stable population of bears or a population of bears with
a stable age distribution:
The proportion of cubs to adults remains constant in a bear population that declines in size
each year. - Answers Stable age distribution
Classify each statement as describing a stable population of bears or a population of bears with
a stable age distribution:
From one year to the next, a growing population consistently has about three times as many
