A cell that carries out the final response or function of a particular process. The main effector cells of the immune system, for example, are activated lymphocytes and phagocytesâthe cells involved in destroying pathogens and removing them from the body.
Best Answer: Yes you can track it online here: https://tools.usps.com/go/TrackConfirmAc... The tracking number should look like this: CP 000 000 000 US. You can find it on the receipt, and the customs form you filled out.
â07-08-2014 04:42 PM. USPS tracking does not update on a 'real time' basis. Generally speaking, you will see updates the next day that reflects the prior day events.07-08-2014 04:42 PM. USPS tracking does not update on a 'real time' basis. Generally speaking, you will see updates the next day that reflects the prior day events.