Question 1

Intraspecific competition and predation are ____ factors. ​

Accepted Answer

A)  crowding
B)  density-dependent
C)  reproductive
D)  population
E)  logisticF) A) and E)
G) A) and D)

Question 2

Which statement characterizes human population growth?

Accepted Answer

A)  The rate of human population growth appears to be declining.
B)  The rate of human population growth appears to be increasing.
C)  The rate of human population growth is exponential.
D)  Human birth rates are higher than death rates.
E)  Human death rates are higher than birth rates.F) A) and E)
G) All of the above

Question 3

Which group exhibits the longest generation time? ​

Accepted Answer

A)  bacteria
B)  plants
C)  animals
D)  protists
E)  fungiF) A) and B)
G) B) and D)

Question 4

Fecundity is ____.

Accepted Answer

A)  a summary of the demographic characteristics of a population
B)  a group of individuals of similar age
C)  the average number of offspring produced
D)  the proportion of individuals alive at the start of an interval that die during that interval
E)  the proportion of individuals alive at the start of an interval that survive to the start of the next intervalF) All of the above
G) A) and E)

Question 5

A time lag in the response of survivorship and fecundity to a population's density can occur because ____ is usually determined by the availability of resources at some time in the past.

Accepted Answer

A)  death
B)  immigration
C)  fecundity
D)  competition
E)  population growthF) B) and C)
G) All of the above

Question 6

Match between columns
                        Premises: population density

Accepted Answer

The Answer of population growth slows as population approaches K is...

Question 7

Logistic population growth describes growth without limitation.

Accepted Answer

A) True 
 B)False

Question 8

Which of these species' population growth rate is least affected by the number of males?

Accepted Answer

A)  northern elephant seals
B)  trumpeter swans
C)  Canadian geese
D)  European rabbits
E)  Norwegian ratsF) B) and E)
G) B) and D)

Question 9

The tools used by ecologists to study mortality rates were developed by developmental biologists .

Accepted Answer

A) True 
 B)False

Question 10

The density of a population is defined as the ____.

Accepted Answer

A)  number of individuals in a population at a specified time
B)  number of individuals in a population at a specified place
C)  number of individuals per unit area or per unit volume of habitat
D)  size of the individual organisms per unit area
E)  number of individual organisms per family unitF) B) and E)
G) A) and E)

Question 11

Carrying capacity is ____. ​

Accepted Answer

A)  determined by the individuals of a species
B)  defined for each population, and varies from one habitat to another
C)  the same across all environments
D)  the same in one habitat through time
E)  the same across all populationsF) A) and E)
G) A) and D)

Question 12

Life history patterns of guppies in Trinidad are a result of which natural selection force?

Accepted Answer

A)  Competition differences in different streams.
B)  Predation differences in different streams.
C)  Temperature differences in different streams.
D)  Pollution differences in different streams.
E)  Salt concentration differences in different streams.F) A) and E)
G) C) and D)

Question 13

Match between columns
                        Premises: long life span

Accepted Answer

The Answer of r -selected and K -selected is...

Question 14

Lizards can control spider populations on Caribbean islands by which density-dependent mechanism(s) ? ​

Accepted Answer

A)  predation only
B)  competition only
C)  predation on a common predator only
D)  predation and competition
E)  predation, competition, and predation on a common predatorF) B) and C)
G) None of the above

Question 15

Answer the question using the accompanying figure. Sea turtles are likely to die when they are young, but have a good chance of surviving once they reach large size. Which survivorship curve best fits this species?

Accepted Answer

A)  Type I, which is graph A
B)  Type II, which is graph B
C)  Type I, which is graph C
D)  Type III, which is graph C
E)  Type III, which is graph AF) C) and D)
G) C) and E)

Question 16

For the bay checkerspot butterfly, a poor flyer, to recolonize small patch habitats, the new habitats must be ____. ​

Accepted Answer

A)  high quality
B)  low quality
C)  close to a source population
D)  far from a source population
E)  above a certain number of individualsF) A) and C)
G) B) and E)

Question 17

Population growth of rabbits in Australia can best be described as ____.

Accepted Answer

A)  fast
B)  exponential
C)  virulent
D)  stable
E)  epidemicF) None of the above
G) A) and B)

Question 18

Organisms use ____ for maintenance, growth, and reproduction.

Accepted Answer

A)  survivorship
B)  predation
C)  energy
D)  parental care
E)  dispersionF) B) and E)
G) B) and D)

Question 19

The difference between the per capita birth rate and the per capita death rate is the ____. ​

Accepted Answer

A)  per capita growth rate
B)  per capita population curve
C)  intrinsic rate of increase
D)  geometric population curve
E)  exponential population curveF) A) and D)
G) D) and E)

Question 20

Recent studies have demonstrated evolution in some populations over a span of time as short as ____. ​

Accepted Answer

A)  single years
B)  decades
C)  centuries
D)  thousands of years
E)  millions of yearsF) D) and E)
G) A) and B)

Exam 52: Population Ecology

A time lag in the response of survivorship and fecundity to a population's density can occur because ____ is usually determined by the availability of resources at some time in the past.

Correct Answer
verified

The difference between the per capita birth rate and the per capita death rate is the ____.

Correct Answer
verified

Organisms use ____ for maintenance, growth, and reproduction.

Correct Answer
verified

Recent studies have demonstrated evolution in some populations over a span of time as short as ____.

Correct Answer
verified

Which of these species' population growth rate is least affected by the number of males?

Correct Answer
verified

Life history patterns of guppies in Trinidad are a result of which natural selection force?

Correct Answer
verified

Categorize the following traits as belonging predominantly to an r -selected species or a K -selected species.

Intraspecific competition and predation are ____ factors.

Correct Answer
verified

Match each of the following terms with its correct definition.

Answer the question using the accompanying figure. Sea turtles are likely to die when they are young, but have a good chance of surviving once they reach large size. Which survivorship curve best fits this species?

Correct Answer
verified

For the bay checkerspot butterfly, a poor flyer, to recolonize small patch habitats, the new habitats must be ____.

Correct Answer
verified

The tools used by ecologists to study mortality rates were developed by developmental biologists .

Correct Answer
verified

The density of a population is defined as the ____.

Correct Answer
verified

Lizards can control spider populations on Caribbean islands by which density-dependent mechanism(s) ?

Correct Answer
verified

Which statement characterizes human population growth?

Correct Answer
verified

Population growth of rabbits in Australia can best be described as ____.

Correct Answer
verified

Carrying capacity is ____.

Correct Answer
verified

Which group exhibits the longest generation time?

Correct Answer
verified

Logistic population growth describes growth without limitation.

Correct Answer
verified

Fecundity is ____.

Correct Answer
verified

Exam 52: Population Ecology

A time lag in the response of survivorship and fecundity to a population's density can occur because ____ is usually determined by the availability of resources at some time in the past.

Correct AnswerverifiedShow Answer

The difference between the per capita birth rate and the per capita death rate is the ____. ​

Correct AnswerverifiedShow Answer

Organisms use ____ for maintenance, growth, and reproduction.

Correct AnswerverifiedShow Answer

Recent studies have demonstrated evolution in some populations over a span of time as short as ____. ​

Correct AnswerverifiedShow Answer

Which of these species' population growth rate is least affected by the number of males?

Correct AnswerverifiedShow Answer

Life history patterns of guppies in Trinidad are a result of which natural selection force?

Correct AnswerverifiedShow Answer

Categorize the following traits as belonging predominantly to an r -selected species or a K -selected species.

Intraspecific competition and predation are ____ factors. ​

Correct AnswerverifiedShow Answer

Match each of the following terms with its correct definition.

Answer the question using the accompanying figure. Sea turtles are likely to die when they are young, but have a good chance of surviving once they reach large size. Which survivorship curve best fits this species?

Correct AnswerverifiedShow Answer

For the bay checkerspot butterfly, a poor flyer, to recolonize small patch habitats, the new habitats must be ____. ​

Correct AnswerverifiedShow Answer

The tools used by ecologists to study mortality rates were developed by developmental biologists .

Correct AnswerverifiedShow Answer

The density of a population is defined as the ____.

Correct AnswerverifiedShow Answer

Lizards can control spider populations on Caribbean islands by which density-dependent mechanism(s) ? ​

Correct AnswerverifiedShow Answer

Which statement characterizes human population growth?

Correct AnswerverifiedShow Answer

Population growth of rabbits in Australia can best be described as ____.

Correct AnswerverifiedShow Answer

Carrying capacity is ____. ​

Correct AnswerverifiedShow Answer

Which group exhibits the longest generation time? ​

Correct AnswerverifiedShow Answer

Logistic population growth describes growth without limitation.

Correct AnswerverifiedShow Answer

Fecundity is ____.

Correct AnswerverifiedShow Answer

Correct Answer
verified

The difference between the per capita birth rate and the per capita death rate is the ____.

Correct Answer
verified

Correct Answer
verified

Recent studies have demonstrated evolution in some populations over a span of time as short as ____.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Intraspecific competition and predation are ____ factors.

Correct Answer
verified

Correct Answer
verified

For the bay checkerspot butterfly, a poor flyer, to recolonize small patch habitats, the new habitats must be ____.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Lizards can control spider populations on Caribbean islands by which density-dependent mechanism(s) ?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Carrying capacity is ____.

Correct Answer
verified

Which group exhibits the longest generation time?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified