Question 1

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 E

Question 2

Human populations are clumped on a large scale with the greatest concentration in

Accepted Answer

A) Africa. 
B) Europe. 
C) Asia. 
D) North America. 
E) South America. 
A) Africa. 
B) Europe. 
C) Asia. 
D) North America. 
E) South America. C

Question 3

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. D

Question 4

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 5

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 6

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 7

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.

Question 8

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 9

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 10

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

Question 11

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 12

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 13

In a logistic model,when N = K the population stops growing and r = 0.

Accepted Answer

A) True 
 B)False

Question 14

Occasionally,density independent factors can influence populations in a density dependent manner.

Accepted Answer

A) True 
 B)False

Question 15

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 16

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 17

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

Accepted Answer

A) True 
 B)False

Question 18

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 19

Growth by any population with pulsed reproduction can be modeled as

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 20

A population is __________________________ if N>K and the per capita rate of increase is negative.

Accepted Answer

The answer of A population is __________________________ if N>K and...

Exam 11: Population Growth

Logistic population growth produces a __________ population growth curve.

Human populations are clumped on a large scale with the greatest concentration in

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

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

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

Environmental limitation is incorporated into which model of population growth?

An annual plant when initially colonizing an area will probably demonstrate

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

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

Which of the following is/are mismatched?

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

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

In a logistic model,when N = K the population stops growing and r = 0.

Occasionally,density independent factors can influence populations in a density dependent manner.

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

Density dependent factors include all of the following except:

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

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.

Growth by any population with pulsed reproduction can be modeled as

A population is __________________________ if N>K and the per capita rate of increase is negative.

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

Social 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

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