Question

This deep -sea dweller has many light -producing organs along its body, especially in it belly

Answer 1

Most deep-sea animals produce some bioluminescent light, but the phenomenon isn't relegated to the deep: one of the most common sightings occurs at the surface of the ocean. Many small planktonic surfacedwellers—such as single-celled dinoflagellates—are bioluminescent.

and ctenophora can also be include because of calcium activated proteins show bioluminescent in them..

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