hairlike structures that extend from the surface of the cell, where they assist in movement. they are longer and are far less numerous on the cells where they occur.
Fill a U.S. Customs form to track the package abroad or ask your correspondent the parcel's bar code. Note the number that starts with CP on top of the form. Go to usps.com/shipping/trackandconfirm.htm?from=home&page=0035trackandconfirm. Enter the form number. Click Go..
With Form 153 Signature Confirmation you must present the item to a USPS employee which can include handing it to your letter carrier or a retail clerk. For tracking using Form 153, simply visit the USPS website at www.usps.com, or call 1-800-222-1811. In both cases, have your tracking number handy.