Multiple Choice
How do producers and consumers obtain energy in an ecosystem?
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7. Energy and Metabolism
Introduction to Energy
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In the context of energy flow in ecosystems, where do decomposers primarily obtain their energy?
A
From sunlight through photosynthesis
B
From symbiotic relationships with plants
C
From absorbing nutrients from the soil
D
From consuming dead organic matter
Verified step by step guidance1
Understand the role of decomposers in an ecosystem: Decomposers are organisms, such as bacteria and fungi, that break down dead organic matter, returning nutrients to the soil and making them available for other organisms.
Recognize that decomposers do not perform photosynthesis: Unlike plants, decomposers do not have chlorophyll and cannot convert sunlight into energy.
Identify the source of energy for decomposers: Decomposers obtain their energy by breaking down complex organic materials from dead organisms into simpler substances.
Consider the process of decomposition: During decomposition, decomposers secrete enzymes that digest organic material externally, and then absorb the resulting nutrients.
Conclude that decomposers primarily obtain their energy from consuming dead organic matter, which provides them with the necessary nutrients and energy to survive and reproduce.
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