For example, if I want to earn the equivalent of $30 per hour for a 40 hour work week, but I can only bill 20 hours, I have to bill $60 per hour. I am still working 40 hours per week, but only 50% can be billed to a client so my billable rate doubles.
Tropisms. A tropism is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. In tropisms, this response is dependent on the direction of the species.The word tropism comes from the Greek trope (to turn or to change).ropisms. A tropism is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. In tropisms, this response is dependent on the direction of the species. The word tropism comes from the Greek trope (to turn or to change).
  A tropism is a growth response whose direction is determined by the direction of the stimulus.   Growth towards the stimulus is called a positive tropism. Growth away â¦ from the stimulus is called a negative tropism.  The response to light is called phototropism.Shoots are positively phototropic, roots are negatively phototropic.   The response to gravity is called gravitropism (or sometimes geotropism). Growth towards the stimulus is called a positive tropism. Growth away â¦ from the stimulus is called a negative tropism.   The response to light is called phototropism. Shoots are positively phototropic, roots are negatively phototropic.   The response to gravity is called gravitropism (or sometimes geotropism).