Multiple Choice
What type of ecological succession occurs in an area where no life has previously existed?
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48. Ecology
Introduction to Ecology
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Which type of organism can obtain energy directly from any of the other organisms in an ecosystem?
A
Consumer
B
Decomposer
C
Autotroph
D
Producer
Verified step by step guidance1
Begin by understanding the roles of different organisms in an ecosystem. Autotrophs, also known as producers, are organisms that can produce their own food using sunlight or chemical energy. They form the base of the ecosystem's energy pyramid.
Consumers are organisms that obtain energy by eating other organisms. They can be herbivores, carnivores, or omnivores, depending on their diet. Consumers rely on autotrophs or other consumers for energy.
Decomposers are organisms that break down dead or decaying organisms, recycling nutrients back into the ecosystem. They obtain energy from the organic matter of dead organisms.
Identify which type of organism can obtain energy directly from any of the other organisms. Consumers can obtain energy from autotrophs (producers) and other consumers, but not directly from decomposers.
Conclude that decomposers obtain energy from dead organisms, while autotrophs produce their own energy. Therefore, consumers are the type of organism that can obtain energy directly from any of the other organisms in an ecosystem.
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