Question

There is absence of any specific organ for performing life processes in single

celled organisms. Why?​

Answer 1

An organism may be defined as an assembly of molecules functioning as a more or less stable whole that exhibits the properties of life. Dictionary definitions can be broad, using phrases such as "any living structure, such as a plant, animal, fungus or bacterium, capable of growth and reproduction".[13] Many definitions exclude viruses and possible man-made non-organic life forms, as viruses are dependent on the biochemical machinery of a host cell for reproduction.[14] A superorganism is an organism consisting of many individuals working together as a single functional or social unit.[15]