EVERYDAY SCIENCE

Detailed explanation-1: -Plankton are tiny aquatic organisms that cannot move on their own. They live in the photic zone. Nekton are aquatic animals that can move on their own by “swimming” through the water. Benthos are aquatic organisms that crawl in sediments at the bottom of a body of water. 05-Mar-2021

Detailed explanation-2: -Aquatic organisms can be divided into three groups based on where they occur in underwater ecosystems. Nekton describes animals that can swim against water currents, while plankton are plants or animals that drift in the current. Benthic organism spend their time either under, on or near the surface of the ocean floor.

Detailed explanation-3: -Three main groups of ocean life are plankton, nekton, and benthos. Plankton float in the water. Nekton swim through the water. Benthos live on the ocean floor.

Detailed explanation-4: -Plant plankton, also known as phytoplankton – single-celled photosynthetic organisms which manufacture food using energy from sunlight. Zooplankton – single-and many-celled animals that feed on live plankton. Bacteria – some are photosynthetic, but the majority feed on dead organisms.

Detailed explanation-5: -Bacteria. Some of the smallest and most ancient organisms on earth, bacteria are present in virtually every environment and are abundant in all aquatic systems. Fungi. Fungi occur as single cells, and in filaments called hyphae. Protozoa. Algae and Phytoplankton. Periphyton and Biofilm.