Question 1

The physical location in the environment to which an organism has adapted is called

Accepted Answer

A)  niches.
B)  habitats.
C)  populations.
D)  communities.
E)  biomes.F) A) and B)
G) B) and E)

Question 2

Thiobacillus thiooxidans is found in an environmental sample.Which of the following should then apply to this sample?

Accepted Answer

A)  contains lithotrophs
B)  probably obtained from mining drainage
C)  very acidic
D)  contains microbes that oxidize sulfur to sulfates
E)  All of the choices are correct.F) C) and D)
G) A) and E)

Question 3

The sediment in a lake, composed of organic debris and mud, is termed the

Accepted Answer

A)  photic zone.
B)  benthic zone.
C)  profundal zone.
D)  littoral zone.
E)  limnetic zone.F) B) and C)
G) D) and E)

Question 4

Mycorrhizae are the mutualistic relationship between fungi and the roots of certain plants.

Accepted Answer

A) True 
 B)False

Question 5

The science called microbial _____ studies interactions between microbes and their environment and how those interactions affect the earth.

Accepted Answer

The answer of The science called microbial _____ studies interactions...

Question 6

Nutrient deficient ecosystems are called ___________.

Accepted Answer

The answer of Nutrient deficient ecosystems are called ___________....

Question 7

Describe the carbon cycle from the atmosphere to the primary producers and back again.

Accepted Answer

The carbon cycle is the process by which...

Question 8

The oxidation of ammonia (NH4+)  to nitrate (NO3-)  is called

Accepted Answer

A)  ammonification.
B)  nitrogen fixation.
C)  photosynthesis.
D)  nitrification.
E)  denitrification.F) All of the above
G) C) and D)

Question 9

The lithosphere is an area that is without living microorganisms.

Accepted Answer

A) True 
 B)False

Question 10

The total amount of water in the hydrologic cycle has decreased over millions of years.

Accepted Answer

A) True 
 B)False

Question 11

_____ is a floating, surface microbial community that drifts with the currents and waves.

Accepted Answer

The answer of _____ is a floating, surface microbial community...

Question 12

In a synergistic relationship, the action of one microbe favorably affects another, but the first microbe receives no benefit.

Accepted Answer

A) True 
 B)False

Question 13

A food web is generally simpler to visualize than a food chain.

Accepted Answer

A) True 
 B)False

Question 14

The slowly decaying organic litter from plant and animal tissues that is found in the soil is called _____.

Accepted Answer

The answer of The slowly decaying organic litter from plant...

Question 15

Which of the following cannot be photoautrophs?

Accepted Answer

A)  Bacteria
B)  Fungi
C)  Plants
D)  Algae
E)  All of the above can be photoautrophs.F) C) and E)
G) None of the above

Question 16

Eutrophication

Accepted Answer

A)  encourages heavy surface algal blooms.
B)  can block the O2 supply to the lake.
C)  occurs when there are excess nutrients in aquatic ecosystems.
D)  causes massive die-off of fish and invertebrates.
E)  All of the choices are correct.F) B) and D)
G) A) and B)

Question 17

An _____ is the term for a deep groundwater source.

Accepted Answer

The answer of An _____ is the term for a...

Question 18

Living or dead organisms that occupy an organism's habitat are called biotic factors.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is a nitrifying microbe?

Accepted Answer

A)  Nitrospira
B)  Nitrobacter
C)  Nitrococcus
D)  Nitrosomonas
E)  All of the above.F) None of the above
G) B) and E)

Question 20

Which of the following are sources of greenhouse gases?

Accepted Answer

A)  electric cars
B)  cows
C)  goats
D)  both B & CE) A) and B)
F) A) and C)

Exam 26: Environmental Microbiology

In a synergistic relationship, the action of one microbe favorably affects another, but the first microbe receives no benefit.

Correct AnswerverifiedShow Answer

The oxidation of ammonia (NH4+) to nitrate (NO3-) is called

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Which of the following cannot be photoautrophs?

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Thiobacillus thiooxidans is found in an environmental sample.Which of the following should then apply to this sample?

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Eutrophication

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The total amount of water in the hydrologic cycle has decreased over millions of years.

Correct AnswerverifiedShow Answer

The science called microbial _____ studies interactions between microbes and their environment and how those interactions affect the earth.

Correct AnswerverifiedShow Answer

The slowly decaying organic litter from plant and animal tissues that is found in the soil is called _____.

Correct AnswerverifiedShow Answer

Mycorrhizae are the mutualistic relationship between fungi and the roots of certain plants.

Correct AnswerverifiedShow Answer

Describe the carbon cycle from the atmosphere to the primary producers and back again.

Correct AnswerAnswered by ExamLex AIThe carbon cycle is the process by which...View AnswerShow Answer

Which of the following are sources of greenhouse gases?

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An _____ is the term for a deep groundwater source.

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A food web is generally simpler to visualize than a food chain.

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_____ is a floating, surface microbial community that drifts with the currents and waves.

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The lithosphere is an area that is without living microorganisms.

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Which of the following is a nitrifying microbe?

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Nutrient deficient ecosystems are called ___________.

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The physical location in the environment to which an organism has adapted is called

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The sediment in a lake, composed of organic debris and mud, is termed the

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Living or dead organisms that occupy an organism's habitat are called biotic factors.

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The oxidation of ammonia (NH₄⁺) to nitrate (NO₃^-) is called

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The carbon cycle is the process by which...
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