title: How conda manages the environment with system python and python installed with this
body: <p>I have installed anconda with python 3.5, but i am curious to know how conda is managing between system python(2.7.6) and python3.5(installed with anaconda).
  Particularly If I make a new environment with conda help containing python 3.5 and don't switch to my root env in conda while restarting the system. Does system start with python3 as default or python 2.7.6?</p>
  
  <p>I am in need of answer to this as one of my friend installed Anaconda with python3.5 as default to system which broke the system dependencies and It did not start.</p>
  
  <p>I am using Ubuntu 14.04.</p>