Question 1

Water covers about ________ of the Earth's surface.

Accepted Answer

A)   33%
B)   40%
C)   50%
D)   70%
E)   80%F) D) and E)
G) B) and E)

Question 2

In ________,multiple species use the same resource in a slightly different way or at a different time.

Accepted Answer

A)   symbiotic inclusion
B)   resource partitioning
C)   mutualism
D)   intraspecific competition
E)   No answer is correct.F) D) and E)
G) A) and E)

Question 3

Raw sewage affects nutrient flow through an ecosystem more than energy flow.

Accepted Answer

A) True 
 B)False

Question 4

Trees that lose only a few leaves at a time are

Accepted Answer

A)   deciduous trees.
B)   carnivorous trees.
C)   maple trees.
D)   hickory trees.
E)   coniferous trees.F) All of the above
G) A) and E)

Question 5

Parasitism is a symbiotic relationship in which neither member of the relationship benefits.

Accepted Answer

A) True 
 B)False

Question 6

The concentration of the pesticide DDT is likely highest in which organism?

Accepted Answer

A)   a minnow
B)   a mosquito larva
C)   a seagull
D)   plankton
E)   algaeF) A) and E)
G) None of the above

Question 7

Which of the following is not a type of symbiosis?

Accepted Answer

A)   parasitism
B)   mutualism
C)   commensalism
D)   predation
E)   No answer is correct.F) A) and B)
G) A) and E)

Question 8

A food chain is a series of organisms that

Accepted Answer

A)   transfer energy through feeding relationships.
B)   compete for the same food source.
C)   exhibit mutualism with each other.
D)   exhibit parasitism with each other.
E)   succeed one another as a climax community develops.F) C) and D)
G) All of the above

Question 9

The taiga

Accepted Answer

A)   consists of mostly coniferous trees.
B)   has nutrient-rich soil.
C)   has a long growing season.
D)   is warm and dry.
E)   consists of mosses and lichens.F) A) and B)
G) A) and C)

Question 10

The area where the fresh water of a river meets the salt water of the ocean is a(n)

Accepted Answer

A)   intertidal zone.
B)   continental shelf.
C)   hydrothermal vent.
D)   open ocean.
E)   estuary.F) A) and E)
G) A) and B)

Question 11

Competitive exclusion says that two species trying to occupy the same niche in the same ecosystem will not be able to do so indefinitely,one species ultimately outcompeting the other.

Accepted Answer

A) True 
 B)False

Question 12

An example of a keystone species is a root-associated fungus that conifer trees need in order to survive and also supplies food for rodents.

Accepted Answer

A) True 
 B)False

Question 13

If you were to shine a lightbulb on a puddle,and the water in the puddle disappeared,you would say that you had added energy to the puddle and had seen

Accepted Answer

A)   sublimation.
B)   condensation.
C)   convection.
D)   evaporation.
E)   All answers are correct.F) A) and C)
G) B) and C)

Question 14

The chaparral has cool summers with constant rainfall.

Accepted Answer

A) True 
 B)False

Question 15

Walleye pike fish are what?

Accepted Answer

A)   secondary consumers
B)   tertiary consumers
C)   primary consumers
D)   producers
E)   decomposersF) B) and D)
G) A) and D)

Question 16

If a person takes an antibiotic for a bacterial infection,this can reduce the amount of bacteria in their normal microbiota and allow yeast in their genitourinary tract to flourish,which could result in a yeast infection.This is an example of

Accepted Answer

A)   predation.
B)   symbiosis.
C)   the competitive exclusion principle.
D)   the co-inclusion principle.
E)   endosymbiosis.F) None of the above
G) A) and C)

Question 17

Why are estuaries and coral reefs more productive than deeper regions of the ocean?

Accepted Answer

A)   They have more access to light and nutrients.
B)   They have more access to light and lower salt concentrations in the water.
C)   They have more access to light.
D)   They have more access to nutrients and lower salt concentrations in the water.
E)   They have lower salt concentrations in the water.F) All of the above
G) A) and E)

Question 18

In the water cycle,animals return water to the environment by

Accepted Answer

A)   both transpiration and excretion.
B)   excretion only.
C)   transpiration only.
D)   both respiration and excretion.E) A) and D)
F) B) and D)

Question 19

The yearly rainfall of a desert biome is

Accepted Answer

A)   150 to 200 centimeters per year.
B)   more than 300 centimeters per year.
C)   less than 20 centimeters per year.
D)   more than 200 centimeters per year.
E)   50 to 100 centimeters per year.F) B) and E)
G) All of the above

Question 20

The reliance of a plant on one type of insect for pollination and that insect having only the nectar of that plant as its food source is an example of coevolution.

Accepted Answer

A) True 
 B)False

Exam 19: Communities and Ecosystems

Raw sewage affects nutrient flow through an ecosystem more than energy flow.

Correct AnswerverifiedShow Answer

The reliance of a plant on one type of insect for pollination and that insect having only the nectar of that plant as its food source is an example of coevolution.

Correct AnswerverifiedShow Answer

In ________,multiple species use the same resource in a slightly different way or at a different time.

Correct AnswerverifiedShow Answer

If you were to shine a lightbulb on a puddle,and the water in the puddle disappeared,you would say that you had added energy to the puddle and had seen

Correct AnswerverifiedShow Answer

The concentration of the pesticide DDT is likely highest in which organism?

Correct AnswerverifiedShow Answer

Walleye pike fish are what?

Correct AnswerverifiedShow Answer

The yearly rainfall of a desert biome is

Correct AnswerverifiedShow Answer

Competitive exclusion says that two species trying to occupy the same niche in the same ecosystem will not be able to do so indefinitely,one species ultimately outcompeting the other.

Correct AnswerverifiedShow Answer

An example of a keystone species is a root-associated fungus that conifer trees need in order to survive and also supplies food for rodents.

Correct AnswerverifiedShow Answer

A food chain is a series of organisms that

Correct AnswerverifiedShow Answer

The taiga

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Parasitism is a symbiotic relationship in which neither member of the relationship benefits.

Correct AnswerverifiedShow Answer

In the water cycle,animals return water to the environment by

Correct AnswerverifiedShow Answer

Why are estuaries and coral reefs more productive than deeper regions of the ocean?

Correct AnswerverifiedShow Answer

If a person takes an antibiotic for a bacterial infection,this can reduce the amount of bacteria in their normal microbiota and allow yeast in their genitourinary tract to flourish,which could result in a yeast infection.This is an example of

Correct AnswerverifiedShow Answer

Water covers about ________ of the Earth's surface.

Correct AnswerverifiedShow Answer

Which of the following is not a type of symbiosis?

Correct AnswerverifiedShow Answer

The chaparral has cool summers with constant rainfall.

Correct AnswerverifiedShow Answer

Trees that lose only a few leaves at a time are

Correct AnswerverifiedShow Answer

The area where the fresh water of a river meets the salt water of the ocean is a(n)

Correct AnswerverifiedShow Answer

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