Question 1

The chief limiting factor to the success of most trout species is

Accepted Answer

A)  the ability to reproduce.
B)  the dissolved oxygen content in water.
C)  the amount of plant biomass.
D)  All of these are correct.E) B) and D)
F) A) and C)

Question 2

In a mutualistic relationship

Accepted Answer

A)  one organism benefits while the other is unaffected.
B)  both species benefit.
C)  one species benefits while the other is harmed.
D)  endoparasites outnumber ectoparasites.E) B) and C)
F) C) and D)

Question 3

A major reason why animals are moving into urban areas is:

Accepted Answer

A)  Lack of water
B)  The building of larger homes
C)  Habitat loss
D)  Increased agricultural plantingE) None of the above
F) A) and D)

Question 4

Charles Darwin is generally credited with

Accepted Answer

A)  developing the concept of sexual dimorphism.
B)  developing the concept of natural selection.
C)  developing the concept of genetic concept.
D)  All of these are correct.E) B) and C)
F) All of the above

Question 5

Detritus are small bits of non-living organic material.

Accepted Answer

A) True 
 B)False

Question 6

Genes are distinct pieces of DNA that determine the characteristics an individual displays.

Accepted Answer

A) True 
 B)False

Question 7

Commensal organisms live on another organism and harm the host in the process.

Accepted Answer

A) True 
 B)False  False

Question 8

Agricultural runoff consists of a mixture of compounds that serve as nutrients.The two primary nutrients are ________ and ________.

Accepted Answer

A)  nitrogen;oxygen
B)  nitrogen;carbon
C)  nitrogen;phosphorus
D)  nitrogen;sulfurE) B) and D)
F) C) and D) C

Question 9

The introduction of which organism is correlated with a major disruption to the food web of the Great Lakes?

Accepted Answer

A)  diatoms
B)  whitefish
C)  zebra mussels
D)  Diporeia.E) A) and B)
F) A) and C)

Question 10

The production of a new species from a previous species is known as mutualism.

Accepted Answer

A) True 
 B)False

Question 11

The use of fertilizers in agriculture has significantly altered several nutrient cycles including

Accepted Answer

A)  nitrogen.
B)  carbon.
C)  hydrologic.
D)  All of these are correct.E) C) and D)
F) None of the above

Question 12

Consumers are organisms that require no organic matter as a source of food.

Accepted Answer

A) True 
 B)False

Question 13

Charles Darwin developed the idea of natural selection without understanding the gene concept.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following species has been impacted by climate change?

Accepted Answer

A)  Pacific salmon
B)  Bowhead whales
C)  Polar bears
D)  None of the species have been impacted
E)  All of the species have been impactedF) A) and E)
G) A) and C)

Question 15

Which of the following habitats has rapid decomposition?

Accepted Answer

A)  tundra
B)  tropical forests
C)  northern forests
D)  grasslands
E)  swampsF) B) and C)
G) B) and E)

Question 16

Producers use the energy of sunlight to convert inorganic carbon compounds into organic compounds through the process of photosynthesis.

Accepted Answer

A) True 
 B)False

Question 17

Excessive growth in aquatic plants and algae is stimulated by:

Accepted Answer

A)  Abundant supplies of nutrients such as phosphorus
B)  Cold water
C)  Lack of sunlight
D)  Lack of nutrients such as phosphorusE) A) and B)
F) A) and D)

Question 18

Ecologists distinguish two different kinds of competition.An example of one is

Accepted Answer

A)  intraspecific competition occurs between organisms of the same species.
B)  interspecific competition occurs between animals and plants.
C)  intraspecific competition results in one species eliminating another species.
D)  None of the statements is correct.E) A) and C)
F) B) and C)

Question 19

The relationship between frogs and insects is an example of

Accepted Answer

A)  intraspecific competition.
B)  coevolution.
C)  a predator-prey relationship.
D)  competitive exclusion.E) B) and C)
F) A) and D) C

Question 20

Competition between foxes and hawks for the use of mice and rabbits as food is called intraspecific competition.

Accepted Answer

A) True 
 B)False

Exam 5: Interactions: Environments and Organisms

The chief limiting factor to the success of most trout species is

Correct AnswerverifiedShow Answer

In a mutualistic relationship

Correct AnswerverifiedShow Answer

A major reason why animals are moving into urban areas is:

Correct AnswerverifiedShow Answer

Charles Darwin is generally credited with

Correct AnswerverifiedShow Answer

Detritus are small bits of non-living organic material.

Correct AnswerverifiedShow Answer

Genes are distinct pieces of DNA that determine the characteristics an individual displays.

Correct AnswerverifiedShow Answer

Commensal organisms live on another organism and harm the host in the process.

Correct AnswerverifiedFalse

Agricultural runoff consists of a mixture of compounds that serve as nutrients.The two primary nutrients are ________ and ________.

Correct AnswerverifiedC

The introduction of which organism is correlated with a major disruption to the food web of the Great Lakes?

Correct AnswerverifiedShow Answer

The production of a new species from a previous species is known as mutualism.

Correct AnswerverifiedShow Answer

The use of fertilizers in agriculture has significantly altered several nutrient cycles including

Correct AnswerverifiedShow Answer

Consumers are organisms that require no organic matter as a source of food.

Correct AnswerverifiedShow Answer

Charles Darwin developed the idea of natural selection without understanding the gene concept.

Correct AnswerverifiedShow Answer

Which of the following species has been impacted by climate change?

Correct AnswerverifiedShow Answer

Which of the following habitats has rapid decomposition?

Correct AnswerverifiedShow Answer

Producers use the energy of sunlight to convert inorganic carbon compounds into organic compounds through the process of photosynthesis.

Correct AnswerverifiedShow Answer

Excessive growth in aquatic plants and algae is stimulated by:

Correct AnswerverifiedShow Answer

Ecologists distinguish two different kinds of competition.An example of one is

Correct AnswerverifiedShow Answer

The relationship between frogs and insects is an example of

Correct AnswerverifiedC

Competition between foxes and hawks for the use of mice and rabbits as food is called intraspecific competition.

Correct AnswerverifiedShow Answer

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False

Agricultural runoff consists of a mixture of compounds that serve as nutrients.The two primary nutrients are and .

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C

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C

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