Answer:
Unicellular organism
Explanation:
Unicellular organisms are organism that posses only a single cell. They are also referred to as acellular organisms. Some unicellular organisms are prokaryotes while a few of them too eukaryotes.
The major characteristic that describes a plant is the presence of green pigment called chlorophyll within the chloroplast which enables them to synthesize their food by themselves through photosynthesis
