This chart describes the expected percentage of people who perform the job of Fitness Instructor that make less than that salary. For example 50% of the people who perform the job of Fitness Instructor are expected to make less than the median. Source: HR Reported data as of October 2015.
The structure of a cell membrane is designed to keep the internal contents of the cell intact, as well as keep unneeded materials out. The membrane is made up of a number of holes through which chemical processes and material exchanges take place.
A: The cell boundary is called the cell membrane. In plant cells, it is called the cell wall, and it is made of cellulose. The cell membrane separates a cell from its surroundings. The cell membrane provides structure and form to the cell.