Question

Which organism is a Single celied organism?​

Answer 1

$\mathfrak{\huge{\blue{\underline{\underline{★ Aditya ★}}}}}$

A unicellular organism is an organism that consists of a single cell. This means all life processes, such as reproduction, feeding, digestion, and excretion, occur in one cell. Amoebas, bacteria, and plankton are just some types of unicellular organisms.

Answer 2

Following are some of the examples of unicellular organisms:
Escherichia coli.
Diatoms.
Protozoa.
Protista.
Streptococcus.
Pneumococci.
Dinoflagellates.