Question 1

If reproduction occurs early in the life cycle,what occurs?

Accepted Answer

A)  Population growth rate increases. 
B)  Population size declines. 
C)  Population size is not affected. 
D)  Generation time increases. 
E)  Growth rate remains unchanged. 
A)  Population growth rate increases. 
B)  Population size declines. 
C)  Population size is not affected. 
D)  Generation time increases. 
E)  Growth rate remains unchanged.

Question 2

Classification.Answer the questions in reference to the seven terms listed below that are used by ecologists.
 a.density-dependent factor
b.demographic transitional stage
c.type I survivorship
d.r-selected species
e.biotic potential
f.density-independent factor
g.logistic growth
-Death rate drops fast; birth rate declines slowly

Accepted Answer

The answer of Classification.Answer the questions in reference to the...

Question 3

Classification.Answer the questions in reference to the seven terms listed below that are used by ecologists.
 a.density-dependent factor
b.demographic transitional stage
c.type I survivorship
d.r-selected species
e.biotic potential
f.density-independent factor
g.logistic growth
-Given unlimited resources,what organisms will achieve

Accepted Answer

The answer of Classification.Answer the questions in reference to the...

Question 4

Typically,members of a cohort are tracked

Accepted Answer

A)  until they become independent. 
B)  until their breeding age. 
C)  for a period of time and then released in the environment to serve their purpose in the community. 
D)  from birth to death. 
E)  as long as they are in good health and serve the purpose of a study. 
A)  until they become independent. 
B)  until their breeding age. 
C)  for a period of time and then released in the environment to serve their purpose in the community. 
D)  from birth to death. 
E)  as long as they are in good health and serve the purpose of a study.

Question 5

The birth rate in a population of 400 feral cats is 100 per year.The death rate in this same population is 40 per year.The per capita growth rate of this population of feral cats is ___ per cat per year.

Accepted Answer

A)  .25 
B)  .1 
C)  .15 
D)  .4 
E)  0 
A)  .25 
B)  .1 
C)  .15 
D)  .4 
E)  0

Question 6

Which of the following is true of a population?

Accepted Answer

A)  Members of a population are all genetically identical. 
B)  Members of a population live together and interbreed. 
C)  A population may include both predators and prey. 
D)  Members of a population spend much of their time living apart. 
E)  More than one of these is true. 
A)  Members of a population are all genetically identical. 
B)  Members of a population live together and interbreed. 
C)  A population may include both predators and prey. 
D)  Members of a population spend much of their time living apart. 
E)  More than one of these is true.

Question 7

Which of the following is NOT a density-dependent limiting factor?

Accepted Answer

A)  disease 
B)  parasitism 
C)  lack of living space 
D)  dramatic change in climate 
E)  all of these are density-dependent limiting factors 
A)  disease 
B)  parasitism 
C)  lack of living space 
D)  dramatic change in climate 
E)  all of these are density-dependent limiting factors

Question 8

Which country has the biggest ecological footprint?

Accepted Answer

A)  France 
B)  United States 
C)  China 
D)  India 
E)  Canada 
A)  France 
B)  United States 
C)  China 
D)  India 
E)  Canada

Question 9

Match the following letters with the number with which they best correspond.
 a.population density
b.population growth rate
c.carrying capacity
d.limiting factor
e.age structure
f.ecological footprint
-the United States has the biggest one of these

Accepted Answer

The answer of Match the following letters with the number...

Question 10

Classification.Answer the questions in reference to the seven terms listed below that are used by ecologists.
 a.density-dependent factor
b.demographic transitional stage
c.type I survivorship
d.r-selected species
e.biotic potential
f.density-independent factor
g.logistic growth
-Long life spans,few offspring,extended care of young

Accepted Answer

The answer of Classification.Answer the questions in reference to the...

Question 11

Density-independent controls over population growth include

Accepted Answer

A)  parasites. 
B)  temperature. 
C)  disease. 
D)  competition. 
E)  all of these. 
A)  parasites. 
B)  temperature. 
C)  disease. 
D)  competition. 
E)  all of these.

Question 12

In which demographic model is population growth the fastest?

Accepted Answer

A)  pre-industrial 
B)  transitional 
C)  industrial 
D)  postindustrial 
E)  transformational 
A)  pre-industrial 
B)  transitional 
C)  industrial 
D)  postindustrial 
E)  transformational

Question 13

A group of organisms of the same species that live in a specific location is called a(n)

Accepted Answer

A)  community. 
B)  population. 
C)  species. 
D)  genus. 
E)  biome. 
A)  community. 
B)  population. 
C)  species. 
D)  genus. 
E)  biome.

Question 14

Which of the following is a density-dependent factor that would control the size of a population?

Accepted Answer

A)  wind velocity 
B)  light intensity 
C)  resource availability 
D)  rainfall 
E)  wave action in an intertidal zone 
A)  wind velocity 
B)  light intensity 
C)  resource availability 
D)  rainfall 
E)  wave action in an intertidal zone

Question 15

Modern humans evolved in ___ about ___ years ago.

Accepted Answer

A)  Africa...43,000 
B)  Africa...200,000 
C)  Africa...2,000,000 
D)  Asia...43,000 
E)  Asia...200,000 
A)  Africa...43,000 
B)  Africa...200,000 
C)  Africa...2,000,000 
D)  Asia...43,000 
E)  Asia...200,000

Question 16

A type III survivorship curve is characteristic of

Accepted Answer

A)  dogs. 
B)  goats. 
C)  hawks. 
D)  clams. 
E)  horses. 
A)  dogs. 
B)  goats. 
C)  hawks. 
D)  clams. 
E)  horses.

Question 17

The United States accounts for ___ percent of the world's population and uses ___ percent of the world's mineral and energy supplies.

Accepted Answer

A)  10.5...50 
B)  25...25 
C)  10.5...10.5 
D)  4.6...25 
E)  1.5...10.5 
A)  10.5...50 
B)  25...25 
C)  10.5...10.5 
D)  4.6...25 
E)  1.5...10.5

Question 18

Wheat is an annual plant that produces many seeds.Wheat is a __ species.

Accepted Answer

A)  Type II 
B)  Type III 
C)  r-selected 
D)  K-selected 
E)  more than one of these 
A)  Type II 
B)  Type III 
C)  r-selected 
D)  K-selected 
E)  more than one of these

Question 19

The maximum number of individuals of a species that a given environment can sustain indefinitely defines

Accepted Answer

A)  the carrying capacity of the environment. 
B)  exponential growth. 
C)  the doubling time of a population. 
D)  the density-independent factors. 
E)  all of these. 
A)  the carrying capacity of the environment. 
B)  exponential growth. 
C)  the doubling time of a population. 
D)  the density-independent factors. 
E)  all of these.

Question 20

It has been estimated that if everyone in the world had the same lifestyle as the average American,it would require ___ more Earths.

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Exam 16: Population Ecology

If reproduction occurs early in the life cycle,what occurs?

Typically,members of a cohort are tracked

The birth rate in a population of 400 feral cats is 100 per year.The death rate in this same population is 40 per year.The per capita growth rate of this population of feral cats is ___ per cat per year.

Which of the following is true of a population?

Which of the following is NOT a density-dependent limiting factor?

Which country has the biggest ecological footprint?

Match the following letters with the number with which they best correspond. a.population density b.population growth rate c.carrying capacity d.limiting factor e.age structure f.ecological footprint -the United States has the biggest one of these

Density-independent controls over population growth include

In which demographic model is population growth the fastest?

A group of organisms of the same species that live in a specific location is called a(n)

Which of the following is a density-dependent factor that would control the size of a population?

Modern humans evolved in ___ about ___ years ago.

A type III survivorship curve is characteristic of

The United States accounts for ___ percent of the world's population and uses ___ percent of the world's mineral and energy supplies.

Wheat is an annual plant that produces many seeds.Wheat is a __ species.

The maximum number of individuals of a species that a given environment can sustain indefinitely defines

It has been estimated that if everyone in the world had the same lifestyle as the average American,it would require ___ more Earths.

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

DNA Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters

Modern humans evolved in _ about _ years ago.

The United States accounts for _ percent of the world's population and uses _ percent of the world's mineral and energy supplies.