Question 1. The epipelagic is divided into two components: the oceanic waters and the photic zone.neritic zone.pelagic realm.upper photic zone.subtidal zone. Question 2. Most of the primary production carried out in the open ocean is performed by seaweeds.kelps.phytoplankton.seagrasses.zooxanthellae. Question 3. Net phytoplankton consist mostly of copepods.diatoms and dinoflagellates.nanoplankton.cyanobacteria (blue-green algae).nanoplankton […]