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.
Insured packages receive an insurance number similar to the tracking numbers provided by USPS. That insurance number is unique and can be used to locate a package. Call the post office where you sent the package. Give the postal clerk a description of the package, the address it is going to and the senderâs address. The clerk will look to see if the package is currently at the post office.