Question

distinguish betwwen biota of the pelagic and benthic zones of the oceans with examples in about 150 words​

Answer 1

The pelagic zone can be contrasted with the benthic and demersal zones at the bottom of the sea. The benthic zone is the ecological region at the very bottom of the sea. It includes the sediment surface and some subsurface layers. Marine organisms living in this zone, such as clams and crabs, are called benthos.

Benthic zone is part of Ocean layer which describes the layers closer to the bottom of the water body, and Pelagic zone is layer which includes the free water column that interacts with the surface layers of a water body.