Multiple Choice
Which statement is true about energy flow in an ecosystem?
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52. Ecosystems
Energy Flow Through Ecosystems
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In the context of energy flow through ecosystems, what is the primary role of producers?
A
Fix nitrogen gas into ammonia as the main source of ecosystem energy
B
Break down dead organic matter and recycle nutrients back into the soil
C
Consume other organisms to transfer energy between trophic levels
D
Convert solar energy into chemical energy stored in organic molecules, forming the base of most food webs
Verified step by step guidance1
Understand that in ecosystems, energy flow begins with organisms that can capture energy from the environment and convert it into a usable form for other organisms.
Recognize that producers, also known as autotrophs, are organisms like plants, algae, and some bacteria that perform photosynthesis or chemosynthesis.
Know that the primary role of producers is to convert solar energy into chemical energy by synthesizing organic molecules (such as glucose) from carbon dioxide and water.
Realize that this chemical energy stored in organic molecules forms the base of most food webs, providing energy for consumers (herbivores, carnivores, omnivores) in higher trophic levels.
Distinguish producers from other roles such as nitrogen fixers, decomposers, or consumers, which have different functions in the ecosystem.
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