Prepares to divide and the DNA is replicated
A conditioned stimulus when paired with a bell. When the bell was rang food was presented. So upon hearing the bell the dog would salivate because he knew simply put food would then follow. This became known as classical conditioning.
<span>If some of the people chose to drink the water from the supplying line broken without boiling, they are in risk to get ill due to the presence of bacteria. Boiling water is a safe measure to kill most bacteria and should be used to avoid diseases caused by bacteria present in contaminated water. </span>
Well for one, we used coal for electricity, water for steam engines when they were much in use, natural fossil feuls for our gasoline and oil, and we use earths oxygen/nitrogen gasses to breathe and sadly we are polluting it at a fast rate
