Question 1

An annual plant when initially colonizing an area will probably demonstrate

Accepted Answer

A)  annual growth rate. 
B)  geometric population growth. 
C)  exponential growth rate. 
D)  logistic growth. 
E)  None of the choices are correct. 
A)  annual growth rate. 
B)  geometric population growth. 
C)  exponential growth rate. 
D)  logistic growth. 
E)  None of the choices are correct. B

Question 2

Nt = N0 $\lambda$t represents

Accepted Answer

A)  geometric population growth. 
B)  annual growth rate. 
C)  exponential growth rate. 
D)  logistic growth. 
E)  None of the choices are correct. 
A)  geometric population growth. 
B)  annual growth rate. 
C)  exponential growth rate. 
D)  logistic growth. 
E)  None of the choices are correct. A

Question 3

'N/K' for a population can represent

Accepted Answer

A)  environmental resistance. 
B)  logistic component. 
C)  population size decrease. 
D)  both environmental resistance and logistic component. 
E)  both logistic component and population size decrease. 
A)  environmental resistance. 
B)  logistic component. 
C)  population size decrease. 
D)  both environmental resistance and logistic component. 
E)  both logistic component and population size decrease. A

Question 4

The best model for population growth of an annual plant like Phlox drummondii is

Accepted Answer

A)  geometric growth. 
B)  exponential growth. 
C)  logistic growth. 
D)  geometric growth during years with high rainfall and exponential growth during years with low rainfall. 
E)  geometric growth during years with high rainfall and logistic growth during years with low rainfall. 
A)  geometric growth. 
B)  exponential growth. 
C)  logistic growth. 
D)  geometric growth during years with high rainfall and exponential growth during years with low rainfall. 
E)  geometric growth during years with high rainfall and logistic growth during years with low rainfall.

Question 5

Environmental limitation is incorporated into which model of population growth?

Accepted Answer

A)    
B)    
C)    
D)    
E)  both   and
  
A)    
B)    
C)    
D)    
E)  both   and

Question 6

Logistic population growth produces a __________ population growth curve.

Accepted Answer

A)  J-shaped 
B)  K-shaped 
C)  N-shaped 
D)  R-shaped 
E)  S-shaped 
A)  J-shaped 
B)  K-shaped 
C)  N-shaped 
D)  R-shaped 
E)  S-shaped

Question 7

In the most basic terms,a population's growth is a function of births and deaths.

Accepted Answer

A) True 
 B)False

Question 8

In the logistic model of population growth if r<0 then

Accepted Answer

A)  the population expands. 
B)  the population declines. 
C)  N>K 
D)  N=K 
E)  both the population declines and N>K 
A)  the population expands. 
B)  the population declines. 
C)  N>K 
D)  N=K 
E)  both the population declines and N>K

Question 9

In the logistic model of population growth if r>0 then

Accepted Answer

A) the population declines. B) population growth stops. C) N>K. D) NK. D) N

Question 10

The factors that determine carrying capacity include all of the following except:

Accepted Answer

A)  space. 
B)  disease. 
C)  food. 
D)  competition. 
E)  None of the choices are correct. 
A)  space. 
B)  disease. 
C)  food. 
D)  competition. 
E)  None of the choices are correct.

Question 11

Logistic growth has been documented in which of the following populations?

Accepted Answer

A)  Eurasian collared dove 
B)  barnacle, Balanus balanoides 
C)  yeast, Saccharomyces cerevisiae 
D)  Northern elephant seal 
E)  All of the choices are correct. 
A)  Eurasian collared dove 
B)  barnacle, Balanus balanoides 
C)  yeast, Saccharomyces cerevisiae 
D)  Northern elephant seal 
E)  All of the choices are correct.

Question 12

dN/dt = rmaxN represents

Accepted Answer

A)  annual growth rate. 
B)  geometric population growth. 
C)  exponential population growth. 
D)  logistic growth. 
E)  None of the choices are correct. 
A)  annual growth rate. 
B)  geometric population growth. 
C)  exponential population growth. 
D)  logistic growth. 
E)  None of the choices are correct.

Question 13

Which of the following statements is/are true?

Accepted Answer

A)  Population growth in humans can be represented by an S curve. 
B)  The human population has reached carry capacity. 
C)  Population growth in humans is exponential. 
D)  Human population growth is not effected by density dependent factors. 
E)  Both population growth in humans can be represented by an S curve and the human population has reached carry capacity. 
A)  Population growth in humans can be represented by an S curve. 
B)  The human population has reached carry capacity. 
C)  Population growth in humans is exponential. 
D)  Human population growth is not effected by density dependent factors. 
E)  Both population growth in humans can be represented by an S curve and the human population has reached carry capacity.

Question 14

If the age distribution diagram is bottom heavy or pyramidal in shape,this indicates that the population is

Accepted Answer

A)  stable. 
B)  declining. 
C)  growing slowly. 
D)  growing rapidly. 
E)  cannot be determined 
A)  stable. 
B)  declining. 
C)  growing slowly. 
D)  growing rapidly. 
E)  cannot be determined

Question 15

dN/dt = rmaxN [(K - N)/K] represents

Accepted Answer

A)  annual growth rate. 
B)  geometric population growth. 
C)  exponential growth rate. 
D)  logistic growth. 
E)  None of the choices are correct. 
A)  annual growth rate. 
B)  geometric population growth. 
C)  exponential growth rate. 
D)  logistic growth. 
E)  None of the choices are correct.

Question 16

If the initial population size is 996 plants and the geometric rate of increase is 2.4177,calculate the population size after eight years for the annual plant Phlox drummondii.

Accepted Answer

A)  198,918 
B)  480,924 
C)  1,162,730 
D)  2,811,131 
E)  cannot be determined with the information given 
A)  198,918 
B)  480,924 
C)  1,162,730 
D)  2,811,131 
E)  cannot be determined with the information given

Question 17

In the logistic model of population growth if N>K then

Accepted Answer

A)  r is zero. 
B)  the population expands. 
C)  r is negative. 
D)  the population declines. 
E)  both r is negative and the population declines. 
A)  r is zero. 
B)  the population expands. 
C)  r is negative. 
D)  the population declines. 
E)  both r is negative and the population declines.

Question 18

Density dependent factors include all of the following except:

Accepted Answer

A)  competition. 
B)  disease. 
C)  predation. 
D)  temperature. 
E)  None of the choices are correct. 
A)  competition. 
B)  disease. 
C)  predation. 
D)  temperature. 
E)  None of the choices are correct.

Question 19

The biotic potential of an organism produces the leveling off at carrying capacity in the logistic growth curve.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is/are mismatched?

Accepted Answer

A)  rmax = intrinsic rate of increase 
B)  K = carrying capacity 
C)  Nt = annual growth rate 
D)  t = time interval 
E)  dN/dt = rate of population change 
A)  rmax = intrinsic rate of increase 
B)  K = carrying capacity 
C)  Nt = annual growth rate 
D)  t = time interval 
E)  dN/dt = rate of population change

Exam 11: Population Growth

An annual plant when initially colonizing an area will probably demonstrate

Nt = N0 λ\lambdaλ t represents

'N/K' for a population can represent

The best model for population growth of an annual plant like Phlox drummondii is

Environmental limitation is incorporated into which model of population growth?

Logistic population growth produces a __________ population growth curve.

In the most basic terms,a population's growth is a function of births and deaths.

In the logistic model of population growth if r<0 then

In the logistic model of population growth if r>0 then

The factors that determine carrying capacity include all of the following except:

Logistic growth has been documented in which of the following populations?

dN/dt = rmaxN represents

Which of the following statements is/are true?

If the age distribution diagram is bottom heavy or pyramidal in shape,this indicates that the population is

dN/dt = rmaxN [(K - N)/K] represents

If the initial population size is 996 plants and the geometric rate of increase is 2.4177,calculate the population size after eight years for the annual plant Phlox drummondii.

In the logistic model of population growth if N>K then

Density dependent factors include all of the following except:

The biotic potential of an organism produces the leveling off at carrying capacity in the logistic growth curve.

Which of the following is/are mismatched?

Introduction to Ecology Historical Foundations and Developing Frontiers

Life on Land

Life in Water

Population Genetics and Natural Selection

Temperature Relations

Water Relations

Energy and Nutrient Relations

Socail Relations

Population Distribution and Abundance

Population Dynamics

Life Histories

Competition

Exploitative Interactions Predation, herbivory, parasitism, and Disease

Mutualism

Species Abundance and Diversity

Species Interactions and Community Structure

Primary Production and Energy Flow

Nutrient Cycling and Retention

Succession and Stability

Landscape Ecology

Geographic Ecology

Global Ecology

Filters

N_t = N₀ $\lambda$ ^t represents

dN/dt = r_maxN represents

dN/dt = r_maxN [(K - N)/K] represents