Multiple Choice
Which of the following is an example of a niche in an ecological context?
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48. Ecology
Introduction to Ecology
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Why are decomposers classified as heterotrophs in an ecosystem?
A
They obtain energy by consuming organic matter from dead organisms.
B
They are the primary producers in the food chain.
C
They convert inorganic substances into organic matter.
D
They produce their own food through photosynthesis.
Verified step by step guidance1
Understand the definition of heterotrophs: Heterotrophs are organisms that cannot produce their own food and must obtain energy by consuming other organisms or organic matter.
Identify the role of decomposers in an ecosystem: Decomposers break down dead organisms and organic waste, recycling nutrients back into the ecosystem.
Recognize that decomposers obtain energy from organic matter: Decomposers consume organic matter from dead organisms, which aligns with the definition of heterotrophs.
Differentiate decomposers from autotrophs: Autotrophs, such as plants, produce their own food through photosynthesis, whereas decomposers rely on consuming organic matter.
Conclude why decomposers are classified as heterotrophs: Since decomposers obtain energy by consuming organic matter rather than producing it themselves, they are classified as heterotrophs.
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