False - cells can differ in structure in order to perform a specific function..
Explanation:
For example, neurons (nerve cells) are electrically excitable. These have an axon (long section that conducts impulses, and ends which branch out - called dendrite. This is an example of a cell structure unique to a certain function.
Precisely is defined as exactly, specifically or with precision. ... When it is exactly 1:00, this is an example of a time when it is precisely 1:00. When you carefully place books on a shelf with great precision, this is an example of a time when you place the books precisely on the shelf.