Keep in mind that properly vented ventilation fans also suck a lot of heated air out of your house. A remedy is to install a heat-exchange ventilator fan. These fans use warm, outgoing air to heat cooler, incoming replacement air.
The size of a typical bacterial cell is 0.5-5.0 micrometers, a average human cell is 10 micrometers. 8 people found this useful.
It is estimated that 500 to 1,000 species of bacteria live in the human gut Bacterial cells are much smaller than human cells, and it is often said that there are at least ten times as many bacteria as human cells in the body, although the actual ratio has not been strictly defined.here is a point of view that human body contains approximately 1014 bacteria cells, while the number of human cells has been calculated to be at least 3.72 * 10 13. The mass of microorganisms are estimated to account for 1-3% total body mass.