Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depends on the temperature and pressure of the system of interest. The same amount of water vapor results in higher humidity in cool air than warm air. A related parameter is the dew point.
Temperatures are not independent of precipitation and a related factor, humidity. When humidity levels are low, most commonly during winter and spring, temperature has greater daily swings. When humidity levels are relatively high, such as during the summer monsoon, temperatures often fluctuate less dramatically from day to night.
I think that the water concentration in the cell is more than the one in the solution, so the water in the cell moves to the solution and then the cell shrinks
Just as helicase is responsible for unwinding the DNA strand, DNA polymerase is responsible for replicating the strand once it unwinds and separates. DNA is made up of a sugar-phosphate ladder and a nucleotide base.