Question 1

In an ecosystem,the elimination of one new species by another because of direct competition for the same resources is an example of

Accepted Answer

A) intraspecific competition. 
B) the competitive exclusion principle. 
C) character displacement. 
D) resource partitioning. 
A) intraspecific competition. 
B) the competitive exclusion principle. 
C) character displacement. 
D) resource partitioning.

Question 2

In logistic growth (an S-shaped curve),how does population growth change as the population nears its carrying capacity?

Accepted Answer

A) Population growth increases. 
B) Population growth remains steady. 
C) Population growth decreases. 
D) Population growth typically crashes when a population nears its carrying capacity. 
A) Population growth increases. 
B) Population growth remains steady. 
C) Population growth decreases. 
D) Population growth typically crashes when a population nears its carrying capacity.

Question 3

Introduced species are a growing problem primarily because of

Accepted Answer

A) global trade and travel. 
B) plate tectonics. 
C) the speed at which new species form. 
D) global climate change. 
A) global trade and travel. 
B) plate tectonics. 
C) the speed at which new species form. 
D) global climate change.

Question 4

Which one of the following is the best analogy to the movements of continents by plate tectonics?

Accepted Answer

A) a worm tunneling through soil 
B) noodles drifting throughout a cup of chicken noodle soup 
C) air mattresses drifting about on the top of a swimming pool 
D) a train running along its tracks 
A) a worm tunneling through soil 
B) noodles drifting throughout a cup of chicken noodle soup 
C) air mattresses drifting about on the top of a swimming pool 
D) a train running along its tracks

Question 5

A squirrel population in an oak forest in Indiana is limited by hawk predators,the amount of acorns produced annually,nesting sites in the trees,and cold winter temperatures.
-A population of bullfrogs in a pond produces many thousands of eggs each spring that hatch out into tadpoles.However,only about 1% of the tadpoles survive to reproduce.This population of frogs is experiencing

Accepted Answer

A) low environmental resistance. 
B) low levels of recruitment. 
C) unlimited population growth. 
D) exponential growth. 
A) low environmental resistance. 
B) low levels of recruitment. 
C) unlimited population growth. 
D) exponential growth.

Question 6

On Earth today,mountains such as the Himalayas are rising because of

Accepted Answer

A) extensive erosion caused by increases in rainfall in those regions. 
B) subterranean pockets of natural gas forcing their way to the surface. 
C) low density rocks that are being forced upward through high density rocks. 
D) collisions between tectonic plates. 
A) extensive erosion caused by increases in rainfall in those regions. 
B) subterranean pockets of natural gas forcing their way to the surface. 
C) low density rocks that are being forced upward through high density rocks. 
D) collisions between tectonic plates.

Question 7

In general,it is rare for a parasite to

Accepted Answer

A) feed on a host. 
B) kill its host. 
C) spread from one host to another. 
D) compete with other parasites for access to a host. 
A) feed on a host. 
B) kill its host. 
C) spread from one host to another. 
D) compete with other parasites for access to a host.

In an ecosystem,the elimination of one new species by another because of direct competition for the same resources is an example of

In logistic growth (an S-shaped curve),how does population growth change as the population nears its carrying capacity?

Introduced species are a growing problem primarily because of

Which one of the following is the best analogy to the movements of continents by plate tectonics?

On Earth today,mountains such as the Himalayas are rising because of

In general,it is rare for a parasite to

Science and the Environment

Economics, Politics, and Public Policy

Basic Needs of Living Things

Ecosystems: Energy, Patterns, and Disturbance

Wild Species and Biodiversity

The Use and Restoration of Ecosystems

The Human Population

Population and Development

Water: Hydrologic Cycle and Human Use

Soil: Foundation for Land Ecosystems

The Production and Distribution of Food

Pests and Pest Control

Energy From Fossil Fuels

Nuclear Power

Renewable Energy

Environmental Hazards and Human Health

Global Climate Change

Atmospheric Pollution

Water Pollution and Its Prevention

Municipal Solid Waste: Disposal and Recovery

Hazardous Chemicals: Pollution and Prevention

Sustainable Communities and Lifestyles

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Exam 4: Populations and Communities

In an ecosystem,the elimination of one new species by another because of direct competition for the same resources is an example of

In logistic growth (an S-shaped curve),how does population growth change as the population nears its carrying capacity?

Introduced species are a growing problem primarily because of

Which one of the following is the best analogy to the movements of continents by plate tectonics?

On Earth today,mountains such as the Himalayas are rising because of

In general,it is rare for a parasite to

Science and the Environment

Economics, Politics, and Public Policy

Basic Needs of Living Things

Ecosystems: Energy, Patterns, and Disturbance

Wild Species and Biodiversity

The Use and Restoration of Ecosystems

The Human Population

Population and Development

Water: Hydrologic Cycle and Human Use

Soil: Foundation for Land Ecosystems

The Production and Distribution of Food

Pests and Pest Control

Energy From Fossil Fuels

Nuclear Power

Renewable Energy

Environmental Hazards and Human Health

Global Climate Change

Atmospheric Pollution

Water Pollution and Its Prevention

Municipal Solid Waste: Disposal and Recovery

Hazardous Chemicals: Pollution and Prevention

Sustainable Communities and Lifestyles

Filters