Bacteria are prokaryotic microorganisms, that lack a nucleus present everywhere on earth including the human body.
Examples: Yersinia pestis, Escherichia coli.
Resting stage means there is no growth or activity.
The microbial cyst is a resting stage of bacteria.
In this condition this stage where thick-walled structures produced by dormant helps to survive unfavorable environmental conditions such as desiccation.