Question 1

Which strategy is a low priority for a conservation biologist?

Accepted Answer

A)  sustaining sensitive ecosystems 
B)  rehabilitating degraded ecosystems 
C)  protecting species from sharp declines 
D)  protecting threatened ecosystems 
A)  sustaining sensitive ecosystems 
B)  rehabilitating degraded ecosystems 
C)  protecting species from sharp declines 
D)  protecting threatened ecosystems

Question 2

REINDEER
  
-Which letter in the graph corresponds to the portion of the graph that can also be called a dieback?

Accepted Answer

The answer of REINDEER
  
-Which letter in the graph...

Question 3

If wolves are controlling deer populations,what type of control is it?

Accepted Answer

A)  predator control 
B)  top-down population control 
C)  producer-level control 
D)  bottom-up population control 
A)  predator control 
B)  top-down population control 
C)  producer-level control 
D)  bottom-up population control

Question 4

When a population exceeds the environment's carrying capacity,species diversity becomes constant.

Accepted Answer

A) True 
 B)False

Question 5

Which characteristic is generally exhibited by a K-selected species?

Accepted Answer

A)  It generally lives in a rapidly changing environment. 
B)  It exhibits "boom-and-bust" cycles. 
C)  It has a population that rises quickly and then crashes. 
D)  It has a population that follows an S-shaped growth curve. 
A)  It generally lives in a rapidly changing environment. 
B)  It exhibits "boom-and-bust" cycles. 
C)  It has a population that rises quickly and then crashes. 
D)  It has a population that follows an S-shaped growth curve.

Question 6

Many long-lived species,such as algae and insects,have irruptive population cycles.

Accepted Answer

A) True 
 B)False

Question 7

Carrying capacity is maximum number of a given species that can be sustained in an area without degrading the environment.

Accepted Answer

A) True 
 B)False

Question 8

Irregular population behaviours are not fully understood.

Accepted Answer

A) True 
 B)False

Question 9

A monoculture is a single crop that has replaced many interrelated plant and animal species.

Accepted Answer

A) True 
 B)False

Question 10

What is the biotic potential of a population?

Accepted Answer

A)  It is the current growth rate of a population. 
B)  It is an expression of how many offspring survive and are able to reproduce. 
C)  It is the maximum reproductive rate of a population. 
D)  It can be determined only by studying an age structure diagram. 
A)  It is the current growth rate of a population. 
B)  It is an expression of how many offspring survive and are able to reproduce. 
C)  It is the maximum reproductive rate of a population. 
D)  It can be determined only by studying an age structure diagram.

Question 11

Which term refers to a population with only a few individuals and thus a limited ability to rebuild due to a lack of genetic diversity?

Accepted Answer

A)  founder effect 
B)  demographic bottleneck 
C)  inbreeding depression 
D)  genetic drift 
A)  founder effect 
B)  demographic bottleneck 
C)  inbreeding depression 
D)  genetic drift

Question 12

Which of the following is among the age structure categories?

Accepted Answer

A)  proreproductive 
B)  reproductive 
C)  elderly 
D)  antireproductive 
A)  proreproductive 
B)  reproductive 
C)  elderly 
D)  antireproductive

Question 13

Which statement summarizes the story of changes in the whooping crane population?

Accepted Answer

A)  It's about an indicator species. 
B)  It's about an alien species. 
C)  It's about a non-native species. 
D)  It's about a success story. 
A)  It's about an indicator species. 
B)  It's about an alien species. 
C)  It's about a non-native species. 
D)  It's about a success story.

Question 14

What enhances environmental resistance?

Accepted Answer

A)  the ability to resist disease and parasites 
B)  a high reproductive rate 
C)  a specialized niche 
D)  the ability to compete for resources 
A)  the ability to resist disease and parasites 
B)  a high reproductive rate 
C)  a specialized niche 
D)  the ability to compete for resources

Question 15

What have biologists learned from studying nature?

Accepted Answer

dependence on the sun and the

Question 16

What leads to population growth?

Accepted Answer

A)  increases in mortality 
B)  increases in environmental resistance 
C)  increases in biotic potential 
D)  decreases in natality 
A)  increases in mortality 
B)  increases in environmental resistance 
C)  increases in biotic potential 
D)  decreases in natality

Question 17

What is the survivorship curve for a typical fish?

Accepted Answer

A)  late loss 
B)  constant loss 
C)  early loss 
D)  no loss 
A)  late loss 
B)  constant loss 
C)  early loss 
D)  no loss

Question 18

If most of a species' offspring die before reaching reproductive age,this is an indication that this species may be ____________________ -selected.

Accepted Answer

The answer of If most of a species' offspring die...

Question 19

What would be unlikely to influence carrying capacity?

Accepted Answer

A)  resources 
B)  a rain shower 
C)  disease 
D)  predation 
A)  resources 
B)  a rain shower 
C)  disease 
D)  predation

Question 20

What survivorship curve would you expect for a mountain gorilla?

Accepted Answer

A)  no loss 
B)  early loss 
C)  constant loss 
D)  late loss 
A)  no loss 
B)  early loss 
C)  constant loss 
D)  late loss

Exam 9: Population Ecology

Which strategy is a low priority for a conservation biologist?

REINDEER -Which letter in the graph corresponds to the portion of the graph that can also be called a dieback?

If wolves are controlling deer populations,what type of control is it?

When a population exceeds the environment's carrying capacity,species diversity becomes constant.

Which characteristic is generally exhibited by a K-selected species?

Many long-lived species,such as algae and insects,have irruptive population cycles.

Carrying capacity is maximum number of a given species that can be sustained in an area without degrading the environment.

Irregular population behaviours are not fully understood.

A monoculture is a single crop that has replaced many interrelated plant and animal species.

What is the biotic potential of a population?

Which term refers to a population with only a few individuals and thus a limited ability to rebuild due to a lack of genetic diversity?

Which of the following is among the age structure categories?

Which statement summarizes the story of changes in the whooping crane population?

What enhances environmental resistance?

What have biologists learned from studying nature?

What leads to population growth?

What is the survivorship curve for a typical fish?

If most of a species' offspring die before reaching reproductive age,this is an indication that this species may be ____________________ -selected.

What would be unlikely to influence carrying capacity?

What survivorship curve would you expect for a mountain gorilla?

Environmental Problems: an Introduction and Overview

Environmental History: Learning From the Past

Science, systems, matter, and Energy

Ecosystems: What Are They, and How Do They Work

Evolution and Biodiversity

Climate and Terrestrial Biodiversity

Aquatic Biodiversity

Community Ecology

Applying Population Ecology: the Human Population

Sustaining Terrestrial Biodiversity: Managing and Protecting Ecosystems

Sustaining Biodiversity: the Species Approach

Sustaining Aquatic Biodiversity

Food and Soil Resources

Water Resources

Geology and Nonrenewable Mineral Resources

Nonrenewable Energy Resources

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