Question 1

Assuming all other factors are equal,a low biological oxygen demand would be likely to cause the

Accepted Answer

A) compensation point (or level)to rise in the lake. 
B) compensation point (or level)to fall in the lake. 
C) profundal zone to expand in the lake. 
D) limnetic zone to shrink in the lake. 
A) compensation point (or level)to rise in the lake. 
B) compensation point (or level)to fall in the lake. 
C) profundal zone to expand in the lake. 
D) limnetic zone to shrink in the lake.

Question 2

The hypoxia problem in the Gulf of Mexico is primarily caused by

Accepted Answer

A) local wind circulations along the coast. 
B) very low thermocline levels in the Gulf of Mexico. 
C) runoff of nutrient-rich fertilizers into the Mississippi River. 
D) El Niño events. 
A) local wind circulations along the coast. 
B) very low thermocline levels in the Gulf of Mexico. 
C) runoff of nutrient-rich fertilizers into the Mississippi River. 
D) El Niño events.

Question 3

If two species are in competition for the same resources,

Accepted Answer

A) we can infer they are in a predator-prey relationship. 
B) a new species will most likely enter the ecosystem if the species decrease the overlap in their niche. 
C) one will always drive the other into extinction. 
D) they cannot be part of the same ecosystem. 
A) we can infer they are in a predator-prey relationship. 
B) a new species will most likely enter the ecosystem if the species decrease the overlap in their niche. 
C) one will always drive the other into extinction. 
D) they cannot be part of the same ecosystem.

Question 4

The diagram below reminds us that NOx reacts with water to produce nitric acid (HNO3),an important component of

Accepted Answer

A) global warming. 
B) El Niño. 
C) eutrophication. 
D) acid rain. 
A) global warming. 
B) El Niño. 
C) eutrophication. 
D) acid rain.

Question 5

A niche is

Accepted Answer

A) the biotic components of the ecosystem. 
B) the role of a species relative to other species in the ecosystem. 
C) the opposite of a habitat. 
D) the ecosystem's properties at the time that the climax community occurs. 
A) the biotic components of the ecosystem. 
B) the role of a species relative to other species in the ecosystem. 
C) the opposite of a habitat. 
D) the ecosystem's properties at the time that the climax community occurs.

Question 6

The difference between inertia and resilience is that

Accepted Answer

A) inertia is the ability of an ecosystem to protect itself against experiencing stress,while resilience is the ability of an ecosystem to find its optimal range of conditions. 
B) inertia is the ability of an ecosystem to find its optimal range of conditions,while resilience is the ability of an ecosystem to protect itself against experiencing stress. 
C) inertia is the ability of an ecosystem to recover following stress,while resilience is the ability of an ecosystem to resist change after a stress is applied. 
D) inertia is the ability of an ecosystem to resist change after a stress is applied,while resilience is the ability of an ecosystem to recover following stress. 
A) inertia is the ability of an ecosystem to protect itself against experiencing stress,while resilience is the ability of an ecosystem to find its optimal range of conditions. 
B) inertia is the ability of an ecosystem to find its optimal range of conditions,while resilience is the ability of an ecosystem to protect itself against experiencing stress. 
C) inertia is the ability of an ecosystem to recover following stress,while resilience is the ability of an ecosystem to resist change after a stress is applied. 
D) inertia is the ability of an ecosystem to resist change after a stress is applied,while resilience is the ability of an ecosystem to recover following stress.

Question 7

An example of mutualism would be

Accepted Answer

A) a bird that eats ticks from a zebra's skin. 
B) Spanish moss that hangs from a live oak tree. 
C) the bacteria that causes pneumonia. 
D) the needles on a cactus. 
A) a bird that eats ticks from a zebra's skin. 
B) Spanish moss that hangs from a live oak tree. 
C) the bacteria that causes pneumonia. 
D) the needles on a cactus.

Question 8

Detritivores eat

Accepted Answer

A) almost solely plants. 
B) decaying plants and/or animals in the soil. 
C) almost solely animals. 
D) animals and plants in the sea only. 
A) almost solely plants. 
B) decaying plants and/or animals in the soil. 
C) almost solely animals. 
D) animals and plants in the sea only.

Question 9

The diagram below shows that C₄ plants photosynthesize more efficiently than C₃ plants at high temperatures.This is because

Accepted Answer

A) C₄ plants make use of chemosynthesis as well as photosynthesis. 
B) C₄ plants are able to minimize water loss through the stomates more efficiently than C₃ plants. 
C) C₄ plants make use of the Calvin cycle to photosynthesize over a wider range of hours,while C₃ plants do not. 
D) C₄ plants have larger chloroplasts than C₃ plants. 
A) C₄ plants make use of chemosynthesis as well as photosynthesis. 
B) C₄ plants are able to minimize water loss through the stomates more efficiently than C₃ plants. 
C) C₄ plants make use of the Calvin cycle to photosynthesize over a wider range of hours,while C₃ plants do not. 
D) C₄ plants have larger chloroplasts than C₃ plants.

Question 10

In the diagram below the "steno" species is represented by the

Accepted Answer

A) green line. 
B) black line. 
A) green line. 
B) black line.

Assuming all other factors are equal,a low biological oxygen demand would be likely to cause the

The hypoxia problem in the Gulf of Mexico is primarily caused by

If two species are in competition for the same resources,

The diagram below reminds us that NOx reacts with water to produce nitric acid (HNO3),an important component of

A niche is

The difference between inertia and resilience is that

An example of mutualism would be

Detritivores eat

The diagram below shows that C₄ plants photosynthesize more efficiently than C₃ plants at high temperatures.This is because

In the diagram below the "steno" species is represented by the

The Nature of Physical Geography

Energy and Matter in the Atmosphere

Atmospheric Motion

Atmospheric Moisture

Weather Systems and Severe Weather

Atmosphere-Ocean-Cryosphere Interactions

Climates Around the World

Water Resources

Understanding Landscapes

Plate Tectonics and Regional Features

Volcanoes,deformation,and Earthquakes

Weathering and Mass Wasting

Streams and Flooding

Glaciers and Glacial Landforms

Coasts and Changing Sea Levels

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Exam 17: Ecosystems and Biogeochemical Cycles

Assuming all other factors are equal,a low biological oxygen demand would be likely to cause the

The hypoxia problem in the Gulf of Mexico is primarily caused by

If two species are in competition for the same resources,

The diagram below reminds us that NOx reacts with water to produce nitric acid (HNO3),an important component of

A niche is

The difference between inertia and resilience is that

An example of mutualism would be

Detritivores eat

The diagram below shows that C₄ plants photosynthesize more efficiently than C₃ plants at high temperatures.This is because

In the diagram below the "steno" species is represented by the

The Nature of Physical Geography

Energy and Matter in the Atmosphere

Atmospheric Motion

Atmospheric Moisture

Weather Systems and Severe Weather

Atmosphere-Ocean-Cryosphere Interactions

Climates Around the World

Water Resources

Understanding Landscapes

Plate Tectonics and Regional Features

Volcanoes,deformation,and Earthquakes

Weathering and Mass Wasting

Streams and Flooding

Glaciers and Glacial Landforms

Coasts and Changing Sea Levels

Soils

Biomes

Filters