Bacterial Cells. Bacterial cells are very small-about 10 times smaller than most plant and animal cells. Most bacterial cells range in size from 0.2 to 10 microns or micrometers (0.0000079 to 0.00039 inches). Common Escherichia coli, or E.coli, bacteria are rod-shaped bacteria, 1 micron by 2 microns long.
1 Installing a concrete paver patio averages between $8 and $15 per square foot.  Stone: The most natural option, stone comes in several sizes, textures, colors and styles. Most homeowners opt for stone to create a design-focused patio. Installing a stone paver patio averages between $4 and $8 per square foot.
Designs and Patterns for a Brick Paver Patio; Conclusion; Brick Paver Costs. Brick pavers generally cost 50 cents or more per brick or between $3 and $15 per square foot, but expect higher prices if you choose unusual sizes, rare colors or odd shapes. Some price quotes for brick pavers include: Red brick pavers: $0.50 - $5 per brick; Gray brick pavers: $0.50 - $10 per brick ; Dry laid brick paver patio: $18 per sq. ft.