Yes
Plankton can be either. Plankton is a generic term for any free floating organism.
No. That suggests something rather complicated (and multicellular) for a one celled organism.
the plankton is the single-celled organism that eats dead organism.
A one celled organism is something you see in a microscope like a virus. A bald eagle is a many celled organism.
one celled - or unicellular
Unicellular best describes a one celled organism.
A protitst is a one or many celled organism that lives in most surroundings.
A small one-celled organism is called a microorganism or a single-celled organism. Examples include bacteria, archaea, and some protists.
Plankton is made of very tiny plants or animals, which are usually one-celled. Phytoplankton is the name of the plant plankton; Zooplankton is the name of the animal plankton.
No it is a multi-celled organism. It contains more than one cell.
a one celled organism has only one cell which it depends on for everything which makes it grows faster whereby a many celled organism has multiple cells that it depends so it grows faster
bacteria