Question 1

The salt concentration of the oceans is slowly increasing.

Accepted Answer

A) True 
 B)False

Question 2

Tide pools

Accepted Answer

A)  form only on soft substrates. 
B)  maintain constant abiotic factors. 
C)  are filled only at high tide. 
D)  contain only sessile animals. 
E)  none of the above 
A)  form only on soft substrates. 
B)  maintain constant abiotic factors. 
C)  are filled only at high tide. 
D)  contain only sessile animals. 
E)  none of the above

Question 3

The hydrologic cycle is driven by __________ and __________.

Accepted Answer

Evaporatio

Question 4

Wetlands are defined as habitats that are always flooded.

Accepted Answer

A) True 
 B)False

Question 5

Two streams without tributaries that join together form a

Accepted Answer

A)  river. 
B)  creek. 
C)  3rd order stream. 
D)  2nd order stream. 
E)  none of the above 
A)  river. 
B)  creek. 
C)  3rd order stream. 
D)  2nd order stream. 
E)  none of the above

Question 6

The atmosphere is an important source of both carbon and oxygen in aquatic systems.

Accepted Answer

A) True 
 B)False

Question 7

Terminal lakes form

Accepted Answer

A)  in basins with no outlet. 
B)  where 12th order streams join. 
C)  are usually eutrophic. 
D)  often have very high species diversity. 
E)  none of the above 
A)  in basins with no outlet. 
B)  where 12th order streams join. 
C)  are usually eutrophic. 
D)  often have very high species diversity. 
E)  none of the above

Question 8

When CO2 dissolves in a lake it increases the pH.

Accepted Answer

A) True 
 B)False

Question 9

Transpiration is the process by which water

Accepted Answer

A)  enters an aquifer. 
B)  evaporates from the stomata. 
C)  is taken in by the roots. 
D)  loss is prevented during photosynthesis. 
E)  none of the above 
A)  enters an aquifer. 
B)  evaporates from the stomata. 
C)  is taken in by the roots. 
D)  loss is prevented during photosynthesis. 
E)  none of the above

Question 10

Match the Aquatic system community with corresponding feature
-rocky intertidal

Accepted Answer

A) Carnivorous plants 
B) low productivity 
C) high species diversity 
D) tide pools 
E) threatened by dams
F)salt tolerant woody plants
G)strong salinity gradients
H)thermocline
I)waterfowl breeding habitat
J)cypress "knees" 
A) Carnivorous plants 
B) low productivity 
C) high species diversity 
D) tide pools 
E) threatened by dams
F)salt tolerant woody plants
G)strong salinity gradients
H)thermocline
I)waterfowl breeding habitat
J)cypress "knees"

Question 11

Match the Aquatic system community with corresponding feature
-estuary

Accepted Answer

A) Carnivorous plants 
B) low productivity 
C) high species diversity 
D) tide pools 
E) threatened by dams
F)salt tolerant woody plants
G)strong salinity gradients
H)thermocline
I)waterfowl breeding habitat
J)cypress "knees" 
A) Carnivorous plants 
B) low productivity 
C) high species diversity 
D) tide pools 
E) threatened by dams
F)salt tolerant woody plants
G)strong salinity gradients
H)thermocline
I)waterfowl breeding habitat
J)cypress "knees"

Question 12

Lakes become stratified

Accepted Answer

A)  because waters of different density tend not to mix. 
B)  the thermocline disappears. 
C)  the epilimnion lies above the hypolimnion. 
D)  oxygen is limiting. 
E)  none of the above 
A)  because waters of different density tend not to mix. 
B)  the thermocline disappears. 
C)  the epilimnion lies above the hypolimnion. 
D)  oxygen is limiting. 
E)  none of the above

Question 13

Swamps and marshes are synonymous terms.

Accepted Answer

A) True 
 B)False

Question 14

Oxygen is produced in the hypolimnion.

Accepted Answer

A) True 
 B)False

Question 15

The highest density of water occurs at 4oC.

Accepted Answer

A) True 
 B)False

Question 16

Match the Aquatic system community with corresponding feature
-marsh

Accepted Answer

A) Carnivorous plants 
B) low productivity 
C) high species diversity 
D) tide pools 
E) threatened by dams
F)salt tolerant woody plants
G)strong salinity gradients
H)thermocline
I)waterfowl breeding habitat
J)cypress "knees" 
A) Carnivorous plants 
B) low productivity 
C) high species diversity 
D) tide pools 
E) threatened by dams
F)salt tolerant woody plants
G)strong salinity gradients
H)thermocline
I)waterfowl breeding habitat
J)cypress "knees"

Question 17

The salt in oceans

Accepted Answer

A)  is constant across the earth's oceans. 
B)  usually exceeds 3.8 percent. 
C)  depends entirely on inputs from land. 
D)  is no longer in equilibrium. 
E)  none of the above 
A)  is constant across the earth's oceans. 
B)  usually exceeds 3.8 percent. 
C)  depends entirely on inputs from land. 
D)  is no longer in equilibrium. 
E)  none of the above

Question 18

Aquatic biomes are identified by the dominant vegetation.

Accepted Answer

A) True 
 B)False

Question 19

Match the Aquatic system community with corresponding feature
-open ocean

Accepted Answer

A) Carnivorous plants 
B) low productivity 
C) high species diversity 
D) tide pools 
E) threatened by dams
F)salt tolerant woody plants
G)strong salinity gradients
H)thermocline
I)waterfowl breeding habitat
J)cypress "knees" 
A) Carnivorous plants 
B) low productivity 
C) high species diversity 
D) tide pools 
E) threatened by dams
F)salt tolerant woody plants
G)strong salinity gradients
H)thermocline
I)waterfowl breeding habitat
J)cypress "knees"

Question 20

The critical physical factor in an estuary is

Accepted Answer

A)  wave action. 
B)  tidal surge. 
C)  the presence of tide pools. 
D)  salinity. 
E)  none of the above 
A)  wave action. 
B)  tidal surge. 
C)  the presence of tide pools. 
D)  salinity. 
E)  none of the above

Exam 5: Fresh-water and Marine Communities

The salt concentration of the oceans is slowly increasing.

Tide pools

The hydrologic cycle is driven by __________ and __________.

Wetlands are defined as habitats that are always flooded.

Two streams without tributaries that join together form a

The atmosphere is an important source of both carbon and oxygen in aquatic systems.

Terminal lakes form

When CO2 dissolves in a lake it increases the pH.

Transpiration is the process by which water

Match the Aquatic system community with corresponding feature -rocky intertidal

Match the Aquatic system community with corresponding feature -estuary

Lakes become stratified

Swamps and marshes are synonymous terms.

Oxygen is produced in the hypolimnion.

The highest density of water occurs at 4oC.

Match the Aquatic system community with corresponding feature -marsh

The salt in oceans

Aquatic biomes are identified by the dominant vegetation.

Match the Aquatic system community with corresponding feature -open ocean

The critical physical factor in an estuary is

Introduction to Ecology

Adaptation and Evolution

Adaptations to the Physical Environment

Terrestrial Communities

Behavioral Ecology

The Ecology of Intraspecific Variation

Demography

Population Regulation

Life History Strategies

Competition

Coevolution I Exploitative Interactions

Mutualism

The Structure of Communities

Ecological Succession

Species Diversity

Energy Flow and Trophic Structure

Biogeochemical Cycles

Conservation Biology

Landscape Ecology

Human Global Ecology

Filters

The hydrologic cycle is driven by and .

When CO₂ dissolves in a lake it increases the pH.

The highest density of water occurs at 4^oC.