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Which types of organisms are primarily responsible for recycling nutrients in a food web?
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48. Ecology
Introduction to Ecology
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Abiotic factors in an ecosystem do not include which of the following?
A
Soil pH
B
Bacteria
C
Temperature
D
Sunlight
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Understand the term 'abiotic factors': Abiotic factors are the non-living physical and chemical components of an ecosystem that influence living organisms. Examples include temperature, sunlight, soil pH, water, and air.
Recognize the term 'biotic factors': Biotic factors refer to the living components of an ecosystem, such as plants, animals, fungi, and microorganisms like bacteria.
Analyze the options provided: Soil pH, temperature, and sunlight are all non-living (abiotic) factors that affect ecosystems. Bacteria, however, are living organisms and therefore classified as biotic factors.
Identify the correct answer: Since the question asks for the option that is NOT an abiotic factor, the correct answer is 'Bacteria,' as it is a biotic factor.
Conclude: The distinction between abiotic and biotic factors is essential for understanding ecosystem dynamics. Abiotic factors shape the environment, while biotic factors interact with and depend on these conditions.
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