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What approximate percent of all bacteria are harmless and can even be beneficial to humans?
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1. Introduction to Microbiology
Importance of Microorganisms
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Which of the following is a way in which bacteria help the environment?
A
They prevent all plant growth by consuming soil nutrients.
B
They block sunlight from reaching aquatic plants.
C
They decompose organic matter, recycling nutrients in ecosystems.
D
They increase atmospheric pollution by producing toxic gases.
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Understand the role of bacteria in ecosystems, focusing on their environmental impact rather than harmful effects.
Recall that bacteria are essential decomposers in nature, breaking down dead organic material.
Recognize that through decomposition, bacteria recycle nutrients back into the soil, which supports plant growth and maintains ecosystem health.
Evaluate the given options by comparing them to the known beneficial functions of bacteria, such as nutrient recycling.
Conclude that the correct way bacteria help the environment is by decomposing organic matter and recycling nutrients in ecosystems.
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