Tissue is a collection of cells that all come from the same place and do the same purpose. Bacteria are microscopic and single-celled organisms. They're prokaryotic, which means they don't have a well-organized nucleus. They lack the nuclear membrane, plastids, and mitochondria, as well as protein in the chromatin body. Intake of food, respiration, nutrition, excretion, and so on. The single cell of bacteria performs all physiological roles. Bacteria lack tissues as a result of this.

Example of Bacteria

• Escherichia coli
• Aerococcus urinae
• Bacillus anthracis
• Enterococcus faecalis
• Clostridium tetani
• Fusobacterium necrophorum
• Neisseria meningitides
• Staphylococcus aureus
• Bordetella pertussis