SCIN 130 week 7 quiz. Questions With Answers.

Part 1 of 8 - Chapter 13 18.0 Points

Question 1 of 31
3.0 Points
The community of bacteria in the human body provides benefits EXCEPT?

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A. Increase in antibiotic resistance

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B. Development of immune system

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C. Maintenance of gut

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D. Protection from pathogens



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Question 2 of 31
3.0 Points
Why were only anaerobic organisms able to live during the first 2 billion years on Earth?

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A. the atmosphere was hyper-nitrogenous

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B. the atmosphere was cold

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C. the atmosphere was hot

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D. the atmosphere was anoxic



Feedback: Review Prokaryotic Diversity in Chapter 13.
Question 3 of 31
3.0 Points
What is an example of a positive relationship between fungi and plants?

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A. fungi infecting a potato crop, so that most plants die

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B. infection of stored seeds such as corn

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C. decay of standing or recently felled trees

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D. mycorrhizae increase nutrient uptake in the soil



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Question 4 of 31
3.0 Points
What are two defining characteristics of prokaryotes?

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A. multicellular, has nucleus

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B. single-celled, has nucleus

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C. single-celled, lacking nucleus

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D. multicellular, lacking nucleus



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Question 5 of 31
3.0 Points
Fungi include all of the following EXCEPT which?