Parasitic protozoa are complex and relatively large(typically 3-20 micrometers)
single Celled organisms that cannot replicate outside a suitable host.
But still. You Celled out to him when you were afraid of dying,
so I think you must believe in him.
Bacteria are small(typically 0.2-2 micrometres) single Celled organisms, many of which are capable of multiplication outside a host under favourable conditions.
A Triple Celled temple with superstructure is believed to be dedicated to Brahma,
Vishnu and Siva, the three gods of the Hindu pantheon.
One of them, the southern cave- temple, is a triple- Celled unit containing in each unit a linga mounted on a rock-
cut pitha.
To begin with, all living things excrete things they no longer need or which otherwise might be harmful to them if allowed to build up in said being's system- yes,
everything from the lowliest single Celled organisms to blue whales do this.