Question 1

When plotting the number of individuals in a population against time, the data yield a J-shaped curve. What does this curve indicate?

Accepted Answer

A) logistic growth 
B) environmental resistance 
C) exponential growth 
D) carrying capacity 
E) biotic potential 
A) logistic growth 
B) environmental resistance 
C) exponential growth 
D) carrying capacity 
E) biotic potential C

Question 2

The growth rate of a population increases as its size nears the carrying capacity of its environment.

Accepted Answer

A) True 
 B)False  False

Question 3

The ability of a living system to survive moderate disturbances is called ____.

Accepted Answer

A) stability 
B) inertia 
C) constancy 
D) tipping point 
E) resilience 
A) stability 
B) inertia 
C) constancy 
D) tipping point 
E) resilience B

Question 4

Which of the following exhibits secondary ecological succession?

Accepted Answer

A) abandoned parking lot 
B) newly cooled lava 
C) newly constructed reservoir 
D) a crumbled concrete building 
E) recently flooded land 
A) abandoned parking lot 
B) newly cooled lava 
C) newly constructed reservoir 
D) a crumbled concrete building 
E) recently flooded land

Question 5

What occurs when members of two or more species interact to gain access to the same limited resources?

Accepted Answer

A) interspecific competition 
B) predation 
C) parasitism 
D) mutualism 
E) commensalism 
A) interspecific competition 
B) predation 
C) parasitism 
D) mutualism 
E) commensalism

Question 6

Which of the following is not considered a form of nondestructive behavior ?

Accepted Answer

A) reducing competition by foraging at different times 
B) reducing competition by foraging in different places 
C) orchids attached to branches of forest trees 
D) using the energy or body of another organisms as a food source 
E) bacteria breaking down food for a host and having a sheltered habitat 
A) reducing competition by foraging at different times 
B) reducing competition by foraging in different places 
C) orchids attached to branches of forest trees 
D) using the energy or body of another organisms as a food source 
E) bacteria breaking down food for a host and having a sheltered habitat

Question 7

Humans compete with many other species for space, food, and other resources.

Accepted Answer

A) True 
 B)False

Question 8

When two species behave in ways that benefit both by providing each with food, shelter, or some other resource, it is called ____.

Accepted Answer

A) mimicry 
B) coevolution 
C) parasitism 
D) commensalism 
E) mutualism 
A) mimicry 
B) coevolution 
C) parasitism 
D) commensalism 
E) mutualism

Question 9

What is the number of individuals in a population found within a defined area or volume that can limit the size of some populations?

Accepted Answer

A) population density 
B) population control 
C) the range of tolerance 
D) the age structure 
E) the optimum population level 
A) population density 
B) population control 
C) the range of tolerance 
D) the age structure 
E) the optimum population level

Question 10

The carrying capacity of any given area is not fixed.

Accepted Answer

A) True 
 B)False

Question 11

At the population level, parasites are always harmful to the host species.

Accepted Answer

A) True 
 B)False

Question 12

The maximum population of a given species that a particular habitat can sustain indefinitely is the definition of ____.

Accepted Answer

A) logistic growth 
B) environmental resistance 
C) exponential growth 
D) carrying capacity 
E) biotic potential 
A) logistic growth 
B) environmental resistance 
C) exponential growth 
D) carrying capacity 
E) biotic potential

Question 13

By 1900, white-tailed deer populations in the U.S. were reduced to about ____, but now, since laws have been passed to protect them and their natural predators have nearly been eliminated, their population is over ____ in the U.S.

Accepted Answer

A) 500; 1 million 
B) 5,000; 1 million 
C) 50,000; 5 million 
D) 50,000; 25 million 
E) 100,000; 10 million 
A) 500; 1 million 
B) 5,000; 1 million 
C) 50,000; 5 million 
D) 50,000; 25 million 
E) 100,000; 10 million

Question 14

Too much or too little of any physical or chemical factor can prevent the growth of a population, even if all other factors are at or near the optimum conditions. What is this ecological principle?

Accepted Answer

A) tolerance 
B) limiting factor 
C) resilience 
D) persistence 
E) optimal level 
A) tolerance 
B) limiting factor 
C) resilience 
D) persistence 
E) optimal level

Question 15

What was the primary reason the southern sea otter nearly went extinct by the early 1900s?

Accepted Answer

A) They scared the tourists. 
B) They have thick, luxurious fur. 
C) They were ruining the kelp beds. 
D) They were eating all the shellfish. 
E) They raided valuable bird nests. 
A) They scared the tourists. 
B) They have thick, luxurious fur. 
C) They were ruining the kelp beds. 
D) They were eating all the shellfish. 
E) They raided valuable bird nests.

Question 16

Use the figure above to answer the following question(s). Determine which portion of the accompanying graph represents the number of reindeer that can be sustained indefinitely in a given area. What term illustrates this?

Accepted Answer

Letter A r

Question 17

Some people blame white-tailed deer for invading suburban yards and gardens. Discuss potential solutions to this problem.

Accepted Answer

There are no easy answers to the deer po

Question 18

Explain why it is important to care about the survival of the endangered southern sea otters of California.

Accepted Answer

One reason is for ethical reasons, as ma

Question 19

Animal predators tend to kill the sick, weak, aged, and least fit members of a species because they are the easiest to catch.

Accepted Answer

A) True 
 B)False

Question 20

In predator-prey relationships, the predator is seeking food for itself and its offspring, while the prey is seeking not to become food for the predator. As a result, predator and prey populations exert tremendous natural selection pressures on each other.

Accepted Answer

A) True 
 B)False

When plotting the number of individuals in a population against time, the data yield a J-shaped curve. What does this curve indicate?

The growth rate of a population increases as its size nears the carrying capacity of its environment.

The ability of a living system to survive moderate disturbances is called ____.

Which of the following exhibits secondary ecological succession?

What occurs when members of two or more species interact to gain access to the same limited resources?

Which of the following is not considered a form of nondestructive behavior ?

Humans compete with many other species for space, food, and other resources.

When two species behave in ways that benefit both by providing each with food, shelter, or some other resource, it is called ____.

What is the number of individuals in a population found within a defined area or volume that can limit the size of some populations?

The carrying capacity of any given area is not fixed.

At the population level, parasites are always harmful to the host species.

The maximum population of a given species that a particular habitat can sustain indefinitely is the definition of ____.

By 1900, white-tailed deer populations in the U.S. were reduced to about , but now, since laws have been passed to protect them and their natural predators have nearly been eliminated, their population is over in the U.S.

Too much or too little of any physical or chemical factor can prevent the growth of a population, even if all other factors are at or near the optimum conditions. What is this ecological principle?

What was the primary reason the southern sea otter nearly went extinct by the early 1900s?

Use the figure above to answer the following question(s). Determine which portion of the accompanying graph represents the number of reindeer that can be sustained indefinitely in a given area. What term illustrates this?

Some people blame white-tailed deer for invading suburban yards and gardens. Discuss potential solutions to this problem.

Explain why it is important to care about the survival of the endangered southern sea otters of California.

Animal predators tend to kill the sick, weak, aged, and least fit members of a species because they are the easiest to catch.

In predator-prey relationships, the predator is seeking food for itself and its offspring, while the prey is seeking not to become food for the predator. As a result, predator and prey populations exert tremendous natural selection pressures on each other.

Environmental Problems, Their Causes, and Sustainability

Science, Matter, Energy, and Systems

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

Filters

Exam 5: Biodiversity, Species Interactions, and Population Control

When plotting the number of individuals in a population against time, the data yield a J-shaped curve. What does this curve indicate?

The growth rate of a population increases as its size nears the carrying capacity of its environment.

The ability of a living system to survive moderate disturbances is called ____.

Which of the following exhibits secondary ecological succession?

What occurs when members of two or more species interact to gain access to the same limited resources?

Which of the following is not considered a form of nondestructive behavior ?

Humans compete with many other species for space, food, and other resources.

When two species behave in ways that benefit both by providing each with food, shelter, or some other resource, it is called ____.

What is the number of individuals in a population found within a defined area or volume that can limit the size of some populations?

The carrying capacity of any given area is not fixed.

At the population level, parasites are always harmful to the host species.

The maximum population of a given species that a particular habitat can sustain indefinitely is the definition of ____.

By 1900, white-tailed deer populations in the U.S. were reduced to about ____, but now, since laws have been passed to protect them and their natural predators have nearly been eliminated, their population is over ____ in the U.S.

Too much or too little of any physical or chemical factor can prevent the growth of a population, even if all other factors are at or near the optimum conditions. What is this ecological principle?

What was the primary reason the southern sea otter nearly went extinct by the early 1900s?

Use the figure above to answer the following question(s). Determine which portion of the accompanying graph represents the number of reindeer that can be sustained indefinitely in a given area. What term illustrates this?

Some people blame white-tailed deer for invading suburban yards and gardens. Discuss potential solutions to this problem.

Explain why it is important to care about the survival of the endangered southern sea otters of California.

Animal predators tend to kill the sick, weak, aged, and least fit members of a species because they are the easiest to catch.

In predator-prey relationships, the predator is seeking food for itself and its offspring, while the prey is seeking not to become food for the predator. As a result, predator and prey populations exert tremendous natural selection pressures on each other.

Environmental Problems, Their Causes, and Sustainability

Science, Matter, Energy, and Systems

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

Filters

By 1900, white-tailed deer populations in the U.S. were reduced to about , but now, since laws have been passed to protect them and their natural predators have nearly been eliminated, their population is over in the U.S.