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.
The pavers are sold by numerous manufacturers at various quality levels. An average paver costs from $1.23 to $1.50/sf. The substrate for a 1,000-square-foot driveway would cost more than $500, and the concrete would cost around $75.Joint sand would cost under $50. The second category is cost of installation.his will include sub-categories, such as labor, profit margins, if they are installed by professionals and miscellaneous fees including delivery and disposal. In addition, some cities require homeowners to purchase a building permit for this work. Installation costs range from $765 to $2,400.