GEOLOGY

Detailed explanation-1: -Primary producers-including bacteria, phytoplankton, and algae-form the lowest trophic level, the base of the aquatic food web.

Detailed explanation-2: -The first and lowest level contains the producers, green plants. The plants or their products are consumed by the second-level organisms-the herbivores, or plant eaters. At the third level, primary carnivores, or meat eaters, eat the herbivores; and at the fourth level, secondary carnivores eat the primary carnivores.

Detailed explanation-3: -Zooplankton are part of the base of the marine food web.

Detailed explanation-4: -As a result, zooplankton plays an important part in creating the food web in the ocean. In addition to phytoplankton, they eat bacteria and algae at the bottom of the food chain. Rarely, there may also be times when zooplankton may feed off each other to survive.

Detailed explanation-5: -The zooplankton community is an important element of the aquatic food chain. These organisms serve as an intermediary species in the food chain, transferring energy from planktonic algae (primary producers) to the larger invertebrate predators and fish who in turn feed on them.