The food chain that describes the path through which energy takes will be phytoplankton-zooplankton-Arctic cod-Ringed sal. Energy moves in the ecosystem from producers to primary consumers then secondary and tertiary consumers.

Autotrophs are those organisms that manufacture their own food. The use chemical substances from the environment to produce their nourishment which serves as the source of energy for the whole ecosystem too.
Autotrophs are the producers in any ecosystem and they are usually the plants.
The phytoplankton is an autotroph.
Next up are the primary consumers that takes up the produced food by the autotrophs for their own nourishment. In the chain above, the Zooplankton is the primary consumer.
The secondary consumer that feeds on the zooplankton is the Arctic cod.
The tertiary consumer is the Ringed Sal which feeds directly on the Arctic cod.

Learn more:

food chain brainly.com/question/2497487

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