Question 1

In tidal pools,

Accepted Answer

A)  oxygen concentrations are usually higher during the day than during the night.
B)  carbon dioxide concentrations are usually higher during the day than during the night.
C)  salinity is usually higher during the night than during the day.
D)  temperature is usually higher during the night than during the day. A

Question 2

Ribbed mussels (Modiolus demissus),fiddler crabs (Uca spp.),and marsh periwinkles (Littorina spp.)are the dominant animals of a high salt marsh.

Accepted Answer

A) True 
 B)False  False

Question 3

Salt marshes occur mostly below the intertidal zone and are exposed only during very low tides.

Accepted Answer

A) True 
 B)False  False

Question 4

The meiofauna of a sandy beach refers to organisms living on the surface of sediments.

Accepted Answer

A) True 
 B)False

Question 5

On rocky shores,shallow pools produced by ebbing tides maintain the same temperature and salinity as the open ocean.

Accepted Answer

A) True 
 B)False

Question 6

Riverine wetlands usually have a longer hydroperiod than basin wetlands.

Accepted Answer

A) True 
 B)False

Question 7

Shoreline communities exhibit strong zonation.

Accepted Answer

A) True 
 B)False

Question 8

Cordgrass (Spartina),glassworts (Salicornia),and spearscale (Atriplex)are types of plants commonly found in

Accepted Answer

A)  bogs.
B)  salt marshes.
C)  mangroves.
D)  riparian forests.

Question 9

The hydroperiod of a wetland is longest for

Accepted Answer

A)  riverine wetlands.
B)  basin wetlands.
C)  fringe wetlands.
D)  coastal wetlands.

Question 10

All coastal shores have one feature in common: they are alternately exposed and submerged by the ________.

Accepted Answer

The answer of All coastal shores have one feature in...

Question 11

Intertidal mud flats in tropical regions are typically composed of

Accepted Answer

A)  salt marshes.
B)  peatlands.
C)  mangrove forests or mangals.
D)  oysterbeds.

Question 12

Cordgrass (Spartina alterniflora)can be found in different forms,such as tall in the low marsh environment and short in the high marsh environment.This response to environmental conditions is an example of genotypic plasticity.

Accepted Answer

A) True 
 B)False

Question 13

Bogs formed when a lake basin fills in from above rather than from below,creating a floating mat of peat over open water,are called

Accepted Answer

A)  fens.
B)  blanket mires.
C)  moors.
D)  quaking bogs.

Question 14

In salt marshes,predatory fish move in when

Accepted Answer

A)  the tide is high.
B)  migratory fishes are spawning.
C)  the sun goes down.
D)  salinity is low.

Question 15

Because bogs depend on precipitation for nutrient inputs,they are highly deficient in mineral salts and are low in pH.

Accepted Answer

A) True 
 B)False

Question 16

Peat bogs and mires generally form under ________ conditions.

Accepted Answer

A)  only dystrophic
B)  only eutrophic
C)  both dystrophic and oligotrophic
D)  both oligotrophic and eutrophic

Question 17

Bird and mammal predators are more common in salt marshes during low tide than during high tide.

Accepted Answer

A) True 
 B)False

Question 18

________ plants are adapted to grow in water or on soil that is periodically anaerobic because of excess water.

Accepted Answer

The answer of ________ plants are adapted to grow in...

Question 19

Bacterial decomposition on sandy beaches is most rapid at ________ tide.

Accepted Answer

The answer of Bacterial decomposition on sandy beaches is most...

Question 20

Compared to low tidal marshes,high tidal marshes are characterized by

Accepted Answer

A)  lower salinity.
B)  decreased input of nutrients.
C)  higher tidal exchange rates.
D)  a phenotypically taller,greener cordgrass (Spartina)

Exam 26: Coastal and Wetland Ecosystems

In tidal pools,

Ribbed mussels (Modiolus demissus),fiddler crabs (Uca spp.),and marsh periwinkles (Littorina spp.)are the dominant animals of a high salt marsh.

Salt marshes occur mostly below the intertidal zone and are exposed only during very low tides.

The meiofauna of a sandy beach refers to organisms living on the surface of sediments.

On rocky shores,shallow pools produced by ebbing tides maintain the same temperature and salinity as the open ocean.

Riverine wetlands usually have a longer hydroperiod than basin wetlands.

Shoreline communities exhibit strong zonation.

Cordgrass (Spartina) ,glassworts (Salicornia) ,and spearscale (Atriplex) are types of plants commonly found in

The hydroperiod of a wetland is longest for

All coastal shores have one feature in common: they are alternately exposed and submerged by the ________.

Intertidal mud flats in tropical regions are typically composed of

Cordgrass (Spartina alterniflora)can be found in different forms,such as tall in the low marsh environment and short in the high marsh environment.This response to environmental conditions is an example of genotypic plasticity.

Bogs formed when a lake basin fills in from above rather than from below,creating a floating mat of peat over open water,are called

In salt marshes,predatory fish move in when

Because bogs depend on precipitation for nutrient inputs,they are highly deficient in mineral salts and are low in pH.

Peat bogs and mires generally form under ________ conditions.

Bird and mammal predators are more common in salt marshes during low tide than during high tide.

________ plants are adapted to grow in water or on soil that is periodically anaerobic because of excess water.

Bacterial decomposition on sandy beaches is most rapid at ________ tide.

Compared to low tidal marshes,high tidal marshes are characterized by