Question 1

Which of the following boxes indicates the process of nitrification?

Accepted Answer

A)   Box A
B)   Box B
C)   Box C
D)   Box D
E)   Box EF) C) and D)
G) B) and D)

Question 2

Which of the following terrestrial ecosystems has the highest rate of primary productivity?

Accepted Answer

A)   marsh
B)   tropical rainforest
C)   temperate rainforest
D)   prairie
E)   tundraF) A) and D)
G) C) and E)

Question 3

Which of the following is an example of the competitive exclusion principle?

Accepted Answer

A)   two different species occupying the same ecological niche
B)   two species competing for food and territory
C)   competition of mates between two different species
D)   two species sharing the same habitat
E)   one species outcompeting another species in a particular nicheF) A) and E)
G) B) and C)

Question 4

Among American warblers, several different species often live in the same spruce trees and eat caterpillars. However, each species reproduces at a slightly different time of year and each species also forages at different areas within the tree canopy. These differences in foraging behaviors and reproduction is an example of

Accepted Answer

A)   competitive exclusion.
B)   character displacement.
C)   resource partitioning.
D)   mutualism.
E)   competitive inclusion.F) D) and E)
G) A) and B)

Question 5

Which of the following is not an example of an animal's niche?

Accepted Answer

A)   a small bird living in the dense shrubs at the base of a tree
B)   two male lizards fighting over access to a female
C)   a grasshopper feeding on leaves
D)   an oystercatcher eating bivalves
E)   lions and hyenas fighting over access to a zebra carcassF) C) and E)
G) A) and B)

Question 6

All of the following are reservoirs except

Accepted Answer

A)   oil.
B)   calcium carbonate.
C)   coal.
D)   natural gas.
E)   bicarbonate.F) A) and D)
G) A) and E)

Question 7

On average, 90% of energy is transferred from one trophic level to the next.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is an example of species richness?

Accepted Answer

A)   vultures feeding on the remains of a carcass
B)   herd of 60 elk, 6 bald eagles, and 90 white pine trees
C)   prairie chickens at a lake competing for access to mates
D)   diving beetles, blue gill, lilies, water mites, crayfish
E)   100 kg of vegetation, 10 kg of grasshoppers, 1 kg of spidersF) B) and D)
G) D) and E)

Question 9

In aquatic ecosystems, primary productivity is most dependent on

Accepted Answer

A)   organic nutrients.
B)   species richness and diversity.
C)   the type of soil.
D)   the rate of photosynthesis.
E)   inorganic nutrients.F) D) and E)
G) A) and B)

Question 10

In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, which are eaten by fish, which are then eaten by ducks. In this system, the greatest amount of biomass would be found in the

Accepted Answer

A)   aquatic plants.
B)   small invertebrates.
C)   crayfish.
D)   fish.
E)   ducks.F) A) and B)
G) A) and C)

Question 11

Which of the following communities is the least diverse?

Accepted Answer

A)   15 lions, 100 zebras, 80 giraffes
B)   50 squirrels, 75 oak trees, 60 maple trees
C)   4 crab spiders, 76 goldenrod, 60 echinacea
D)   40 bass, 60 minnow, 55 blue gill
E)   5 elm trees, 7 beech trees, 6 birch treesF) C) and D)
G) D) and E)

Question 12

The most inclusive level of biological organization is

Accepted Answer

A)   ecosystems.
B)   biomes.
C)   the biosphere.
D)   communities.
E)   ecotypes.F) A) and D)
G) B) and C)

Question 13

Which of the following has the slowest phosphate transfer rate?

Accepted Answer

A)   runoff
B)   decomposition of plants and animals
C)   mining
D)   weathering of rocks
E)   fertilizersF) B) and E)
G) C) and D)

Question 14

The physical space that an organism occupies in its environment is its

Accepted Answer

A)   habitat.
B)   niche.
C)   biotic factor.
D)   role.
E)   abiotic factor.F) A) and D)
G) A) and C)

Question 15

A chemoautotroph obtains its energy from all of the following except

Accepted Answer

A)   ammonia.
B)   oxygen.
C)   sulfides.
D)   nitrites.
E)   inorganic compounds.F) A) and E)
G) B) and C)

Question 16

Biomes are defined by

Accepted Answer

A)   their size.
B)   types of animals.
C)   communities.
D)   temperature and rainfall.
E)   plants, animals, and inorganic matter.F) A) and B)
G) B) and E)

Question 17

Based on the figure shown here, which organism is not a primary consumer?

Accepted Answer

A)   rabbit
B)   deer
C)   mouse
D)   chipmunk
E)   fisherF) A) and D)
G) A) and E)

Question 18

Which of the following is an example of a sedimentary cycle?

Accepted Answer

A)   the phosphorus cycle
B)   the nitrogen cycle
C)   the carbon cycle
D)   the atmospheric cycle
E)   eutrophic cycleF) A) and C)
G) A) and E)

Question 19

Which of the following is not true about species diversity?

Accepted Answer

A)   It includes species richness.
B)   It includes species age distribution.
C)   It is influenced by the relative abundance of species.
D)   It is influenced by the distribution of the different species.
E)   It is not impacted by species richness.F) C) and D)
G) A) and C)

Question 20

If there is 2,000 kg of caterpillars, how much of this biomass will be converted into top carnivore tissue?

Accepted Answer

A)   20,000 kg
B)   2,000 kg
C)   200 kg
D)   20 kg
E)   2 kgF) B) and D)
G) A) and B)

Exam 31: Communities and Ecosystems

Which of the following is an example of a sedimentary cycle?

Correct Answer
verified

In aquatic ecosystems, primary productivity is most dependent on

Correct Answer
verified

Which of the following is not an example of an animal's niche?

Correct Answer
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Which of the following boxes indicates the process of nitrification?

Correct Answer
verified

In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, which are eaten by fish, which are then eaten by ducks. In this system, the greatest amount of biomass would be found in the

Correct Answer
verified

All of the following are reservoirs except

Correct Answer
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Biomes are defined by

Correct Answer
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Which of the following has the slowest phosphate transfer rate?

Correct Answer
verified

A chemoautotroph obtains its energy from all of the following except

Correct Answer
verified

Which of the following is an example of species richness?

Correct Answer
verified

The physical space that an organism occupies in its environment is its

Correct Answer
verified

Which of the following is not true about species diversity?

Correct Answer
verified

Which of the following terrestrial ecosystems has the highest rate of primary productivity?

Correct Answer
verified

On average, 90% of energy is transferred from one trophic level to the next.

Correct Answer
verified

If there is 2,000 kg of caterpillars, how much of this biomass will be converted into top carnivore tissue?

Correct Answer
verified

Based on the figure shown here, which organism is not a primary consumer?

Correct Answer
verified

The most inclusive level of biological organization is

Correct Answer
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Which of the following communities is the least diverse?

Correct Answer
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Correct Answer
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Which of the following is an example of the competitive exclusion principle?

Correct Answer
verified

Exam 31: Communities and Ecosystems

Which of the following is an example of a sedimentary cycle?

Correct AnswerverifiedShow Answer

In aquatic ecosystems, primary productivity is most dependent on

Correct AnswerverifiedShow Answer

Which of the following is not an example of an animal's niche?

Correct AnswerverifiedShow Answer

Which of the following boxes indicates the process of nitrification?

Correct AnswerverifiedShow Answer

In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, which are eaten by fish, which are then eaten by ducks. In this system, the greatest amount of biomass would be found in the

Correct AnswerverifiedShow Answer

All of the following are reservoirs except

Correct AnswerverifiedShow Answer

Biomes are defined by

Correct AnswerverifiedShow Answer

Which of the following has the slowest phosphate transfer rate?

Correct AnswerverifiedShow Answer

A chemoautotroph obtains its energy from all of the following except

Correct AnswerverifiedShow Answer

Which of the following is an example of species richness?

Correct AnswerverifiedShow Answer

The physical space that an organism occupies in its environment is its

Correct AnswerverifiedShow Answer

Which of the following is not true about species diversity?

Correct AnswerverifiedShow Answer

Which of the following terrestrial ecosystems has the highest rate of primary productivity?

Correct AnswerverifiedShow Answer

On average, 90% of energy is transferred from one trophic level to the next.

Correct AnswerverifiedShow Answer

If there is 2,000 kg of caterpillars, how much of this biomass will be converted into top carnivore tissue?

Correct AnswerverifiedShow Answer

Based on the figure shown here, which organism is not a primary consumer?

Correct AnswerverifiedShow Answer

The most inclusive level of biological organization is

Correct AnswerverifiedShow Answer

Which of the following communities is the least diverse?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following is an example of the competitive exclusion principle?

Correct AnswerverifiedShow Answer

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