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Assessment
What is the primary source of energy in a food chain?
Producers
Consumers
Decomposers
Predators
In a food chain, what role do herbivores play?
Producers
Primary consumers
Decomposers
Top predators
What happens to energy as it moves up the food chain?
It increases at each trophic level.
It remains constant at each trophic level.
It decreases at each trophic level.
It disappears entirely at the top level.
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