Question 1

What is the term used to describe a shallow,partially enclosed area where freshwater enters the ocean?

Accepted Answer

A)  coral reef
B)  abyssal ecosystem
C)  mangrove swamp
D)  estuaryE) A) and B)
F) B) and C)

Question 2

Savannas are found in

Accepted Answer

A)  Europe.
B)  tropical parts of Africa.
C)  Canada.
D)  None of these are correct.E) None of the above
F) C) and D)

Question 3

Which of the following best matches the description?
-Upper layer of the ocean where the sun's rays penetrate.

Accepted Answer

A)  phytoplankton
B)  littoral zone
C)  desert
D)  pioneer community
E)  grasslandF) boreal forestG) pelagicH) tundraI) none of aboveJ) benthicK) deciduous forestL) biochemical oxygen demandM) periphytonN) marshO) savannaP) euphotic zoneQ) H) and L)
R) H) and P)

Question 4

In desert biomes,flowering usually coincides with

Accepted Answer

A)  moisture availability.
B)  Santa Ana winds.
C)  cool summers.
D)  migration of monarch butterflies.E) A) and B)
F) A) and C)

Question 5

Deep cold-water lakes with poor productivity are called oligotrophic systems.

Accepted Answer

A) True 
 B)False

Question 6

Which is an example of a stage in secondary succession?

Accepted Answer

A)  bare rock produced from a volcano
B)  a forest regenerating after a forest fire
C)  a new lake produced by damming a river
D)  pure sandE) None of the above
F) All of the above

Question 7

Regional terrestrial climax communities are called eutrophic systems.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is NOT a characteristic of temperate deciduous forests?

Accepted Answer

A)  They have fewer species than a tropical rainforest.
B)  They contain shade-tolerant spring wildflowers.
C)  They produce useful plant products such as cashew nuts,vanilla,and rubber.
D)  All of the choices are characteristics.E) A) and C)
F) B) and D)

Question 9

Human impact on desert areas is mainly due to which one of the following factors?

Accepted Answer

A)  introduction of alien species
B)  roads and highways
C)  transport of water to deserts
D)  None of these statements correct.E) A) and D)
F) A) and C) C

Question 10

Muddy shores are often poor in oxygen.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following best matches the description?
-Organisms that live on the bottom of marine or freshwater ecosystems.

Accepted Answer

A)  phytoplankton
B)  littoral zone
C)  desert
D)  pioneer community
E)  grasslandF) boreal forestG) pelagicH) tundraI) none of aboveJ) benthicK) deciduous forestL) biochemical oxygen demandM) periphytonN) marshO) savannaP) euphoticQ) G) and M)
R) H) and M)

Question 12

Ecologists have learned that succession is influenced by many factors other than climate alone including

Accepted Answer

A)  the evolution of new species.
B)  invasive species,human land use history,and seed dispersal.
C)  biogeochemical cycles,available oxygen,and superfund sites.
D)  slope,wind patterns,and toxicity levels.E) A) and C)
F) All of the above

Question 13

Conservation easements can

Accepted Answer

A)  decrease the economic value of a tract of land.
B)  restrict access in order to protect endangered species.
C)  prohibit the subdivision or development of a tract of land.
D)  All of these are correct.E) None of the above
F) All of the above

Question 14

In a rainforest,most of the sunlight is captured by trees and therefore only

Accepted Answer

A)  small plants grow there.
B)  fast growing trees and shrubs grow there.
C)  vines can grow underneath them.
D)  shade-tolerant plants live beneath the canopy.E) C) and D)
F) None of the above

Question 15

Most temperate deciduous forests have survived without impact from human activity due to their location.

Accepted Answer

A) True 
 B)False

Question 16

Most grasslands in North America have been heavily influenced by:

Accepted Answer

A)  Development of shopping malls.
B)  Oil and gas development.
C)  Agriculture and the grazing of domesticated animals.
D)  Urban development.E) A) and B)
F) A) and C)

Question 17

A conservation easement is:

Accepted Answer

A)  A legally binding agreement.
B)  A document that limits the future use or development of property.
C)  A document that is placed on a piece of privately owned land.
D)  All of the options are correct.E) All of the above
F) B) and C) D

Question 18

In an aquatic ecosystem,sedges and grasses are often found in central deeper portions of the body of water.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following best matches the description?
-Biome which is dominated by grass,and in which trees are rare.

Accepted Answer

A)  phytoplankton
B)  littoral zone
C)  desert
D)  pioneer community
E)  grasslandF) boreal forestG) pelagicH) tundraI) none of aboveJ) benthicK) deciduous forestL) biochemical oxygen demandM) periphytonN) marshO) savannaP) euphoticQ) D) and M)
R) B) and M)

Question 20

Which of the following is NOT true of climax communities?

Accepted Answer

A)  They have fewer types of interactions among organisms than successional communities.
B)  They have more kinds of organisms than successional communities.
C)  They have a relatively constant biomass while successional communities tend to accumulate biomass.
D)  They are able to maintain their mix of species and successional communities do not.E) B) and D)
F) B) and C) A

Exam 6: Kinds of Ecosystems and Communities

What is the term used to describe a shallow,partially enclosed area where freshwater enters the ocean?

Correct AnswerverifiedShow Answer

Savannas are found in

Correct AnswerverifiedShow Answer

Which of the following best matches the description? -Upper layer of the ocean where the sun's rays penetrate.

Correct AnswerverifiedShow Answer

In desert biomes,flowering usually coincides with

Correct AnswerverifiedShow Answer

Deep cold-water lakes with poor productivity are called oligotrophic systems.

Correct AnswerverifiedShow Answer

Which is an example of a stage in secondary succession?

Correct AnswerverifiedShow Answer

Regional terrestrial climax communities are called eutrophic systems.

Correct AnswerverifiedShow Answer

Which of the following is NOT a characteristic of temperate deciduous forests?

Correct AnswerverifiedShow Answer

Human impact on desert areas is mainly due to which one of the following factors?

Correct AnswerverifiedC

Muddy shores are often poor in oxygen.

Correct AnswerverifiedShow Answer

Which of the following best matches the description? -Organisms that live on the bottom of marine or freshwater ecosystems.

Correct AnswerverifiedShow Answer

Ecologists have learned that succession is influenced by many factors other than climate alone including

Correct AnswerverifiedShow Answer

Conservation easements can

Correct AnswerverifiedShow Answer

In a rainforest,most of the sunlight is captured by trees and therefore only

Correct AnswerverifiedShow Answer

Most temperate deciduous forests have survived without impact from human activity due to their location.

Correct AnswerverifiedShow Answer

Most grasslands in North America have been heavily influenced by:

Correct AnswerverifiedShow Answer

A conservation easement is:

Correct AnswerverifiedD

In an aquatic ecosystem,sedges and grasses are often found in central deeper portions of the body of water.

Correct AnswerverifiedShow Answer

Which of the following best matches the description? -Biome which is dominated by grass,and in which trees are rare.

Correct AnswerverifiedShow Answer

Which of the following is NOT true of climax communities?

Correct AnswerverifiedA

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C

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D

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A