Include prokaryotic autotrophs that float near the surface of water and are the basis of the food chain.

The correct answer is: Phytoplankton

Phytoplankton is an autotrophic organismthat lives in water and it is incapable of swimming against the water current. They can be found in all water systems, oceans, seas and freshwater basin ecosystems. Phytoplanktons are prokaryotic, usually single-celled organisms, bacteria or protists. The most common kinds are cyanobacteria, dinoflagellates, green algae, and coccolithophores.

liquid crystals are matters in a state which have properties between those of conventional liquids and those of solid crystals[1]. liquid crystal is partially ordered and anisotropic. in terms of molecular order, liquid crystal molecules have one-dimensional or two-dimensional long - range order.

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