It is unknown why the Yellow Pages listing for 'Cruise Division American Express' shortens the listing by two letters. However, one might theorize that reason the listing is being shortened due to space parameters set by the web team.
Telomeres
Yes. You can shorten you are to you're. In grammar, this is called a contraction. It is a common mistake, however, that people write "your" rather than "you're" when trying to express "you are". Other contractions include "don't" for "do not", "can't" for "cannot", "it's" for "it is", and so on.
The breed is The American Pit Bull Terrier. Some people shorten the breed's name but it is the same thing.
The chromatin fibers condense and shorten into visible chromosomes during the prophase stage of mitosis. This condensation allows for easier segregation of genetic material into daughter cells during cell division.
The fibers that shorten and pull the chromatids apart are called microtubules. During cell division, microtubules form the spindle apparatus and attach to the chromosomes to facilitate their separation.
You don't shorten 'it has'.
you shorten it by etc.
Vitamins can't shorten your height.
Bill Shorten's birth name is William Richard Shorten.
Chick Shorten's birth name is Charles Henry Shorten.
Patricia Shorten's birth name is Patricia Shelley Shorten.
The verb of short is shorten. As in "to shorten something".