Question 1

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) B) and E)
G) None of the above

Question 2

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) C) and E)
G) A) and C)

Question 3

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 4

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) C) and E)
G) None of the above

Question 5

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 6

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

Accepted Answer

A) True 
 B)False

Question 7

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

Accepted Answer

A) True 
 B)False

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) B) and C)
G) C) and D)

Question 9

_____ 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 10

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 11

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

Accepted Answer

A) True 
 B)False

Question 12

An _____ is the term for a deep groundwater source.

Accepted Answer

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

Question 13

Nutrient deficient ecosystems are called ___________.

Accepted Answer

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

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

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 E)
G) A) and B)

Question 16

Which of the following is a nitrifying microbe?

Accepted Answer

A)  Nitrospira
B)  Nitrobacter
C)  Nitrococcus
D)  Nitrosomonas
E)  All of the above.F) C) and D)
G) B) and D)

Question 17

Which of the following are sources of greenhouse gases?

Accepted Answer

A)  electric cars
B)  cows
C)  goats
D)  both B & CE) All of the above
F) B) and C)

Question 18

The lithosphere is an area that is without living microorganisms.

Accepted Answer

A) True 
 B)False

Question 19

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) A) and E)
G) B) and E)

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 26: Environmental Microbiology

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

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

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Which of the following is a nitrifying microbe?

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

Correct AnswerverifiedShow Answer

Nutrient deficient ecosystems are called ___________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following are sources of greenhouse gases?

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

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

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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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An _____ is the term for a deep groundwater source.

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The lithosphere is an area that is without living microorganisms.

Correct AnswerverifiedShow Answer

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

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

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

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

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Which of the following cannot be photoautrophs?

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

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Eutrophication

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The carbon cycle is the process by which...
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The oxidation of ammonia (NH₄⁺) to nitrate (NO₃^-) is called

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