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Questions and Answers
Which of the following is NOT a focus area of microbiology?
Which of the following is NOT a focus area of microbiology?
- Pharmaceutical microbiology
- Medical microbiology
- Environmental microbiology
- Astronomical microbiology (correct)
What is the role of microorganisms in the formation of soil?
What is the role of microorganisms in the formation of soil?
- They absorb nutrients from the soil
- They break down rocks to form soil
- They have no role in soil formation
- They produce the soil where plants grow (correct)
Approximately how long ago were microbes the only life on earth?
Approximately how long ago were microbes the only life on earth?
- 3 billion years (correct)
- 3 million years
- 30 billion years
- 300 million years
In what ways do microorganisms affect animals, the environment, and the food supply?
In what ways do microorganisms affect animals, the environment, and the food supply?
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What determines whether the uses of microbiology are beneficial or harmful?
What determines whether the uses of microbiology are beneficial or harmful?
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Study Notes
Microbiology Focus Areas
- Microbiology has several focus areas, excluding ecosystem management
Microorganisms in Soil Formation
- Microorganisms play a crucial role in the formation of soil through decomposition, nutrient cycling, and humus formation
Early Life on Earth
- Microbes were the only life on earth approximately 3.5 billion years ago
Microorganism Impacts
- Microorganisms affect animals through symbiotic relationships, pathogenesis, and nutrition
- Microorganisms affect the environment through decomposition, nutrient cycling, and climate change
- Microorganisms affect the food supply through spoilage, fermentation, and foodborne illnesses
Beneficial vs. Harmful Uses
- The intention and application of microbiology determine whether its uses are beneficial or harmful
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