UberÂ® Customer Service Phone Number: 1-866-576-1039. Uber enables drivers to use their personal car to provide taxi rides and earn income. They provide a smartphone app that connects drivers with people who need a ride. Uber Corporate. Uber Technologies, Inc.
Density-independent factors can affect a population of organisms no matter how small or large the population may be. Examples of Density-Independent Factors. Most density-independent factors are abiotic, or nonliving. Some commonly used examples include temperature, floods, and pollution. How could temperature be a factor in determining the density of a population? Imagine a heavily forested area that is home to a population of mosquitoes.
Procedure. 1. The independent variables in this science fair project are the temperature and species of bacteria-E Coli, Streptococcus or Bacillus. The dependent variable is the size of bacteria growth after five days, which is determined by measuring the size of bacterial growth with a ruler.bservation. Bacteria that were exposed to temperatures of 60 degrees Celsius and 100 degrees Celsius were observed not to have any growth when transferred to the Petri dishes, whereas bacteria exposed to -78 degrees Celsius and 0 degrees Celsius were observed to have a significant amount of growth.