Multiple Choice
Which of the following is not an example of an energy transformation in biology?
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7. Energy and Metabolism
Introduction to Energy
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Where do decomposers obtain their energy in an ecosystem?
A
By consuming dead organic matter
B
From sunlight through photosynthesis
C
From symbiotic relationships with plants
D
By absorbing nutrients from the soil
Verified step by step guidance1
Understand the role of decomposers in an ecosystem. Decomposers are organisms that break down dead or decaying organisms, and in doing so, they carry out the natural process of decomposition.
Recognize that decomposers obtain their energy by consuming dead organic matter. This includes dead plants, animals, and other organic materials.
Differentiate decomposers from other organisms like producers, which obtain energy from sunlight through photosynthesis, and consumers, which obtain energy by eating other organisms.
Consider the options given: 'By consuming dead organic matter' is the correct method by which decomposers obtain energy, as opposed to 'From sunlight through photosynthesis' or 'From symbiotic relationships with plants'.
Note that decomposers do not absorb nutrients from the soil for energy; instead, they break down organic matter to release nutrients back into the soil, which can then be used by plants.
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