I-765 和 I-485 Receipt Notice

今天受到I-765和 I-485 Receipt Notice，很高兴，有几个问题，请教大家：
1。I-765 Receipt Notice 说：
Biometrics, the next step is to have your biometrics taken at a BCIS application support center(ASC). Please make an appointment by calling NCSC 1800-375-5283 to schedule an appointment.

2. I-485 Receipt Notice 说：
Fingerprints and Biometrics, the next step is to have your fingerprints and biometrics taken at a BCIS application support center(ASC). Please make an appointment by calling NCSC 1800-375-5283 to schedule an appointment.

两者有何区别？什么是Biometrics?

Thanks a lot.
老马师

所有跟帖： 

• 回复：I-765 和 I-485 Receipt Notice -ncsc2- ♀ (22 bytes) () 03/16/2004 postreply 13:01:02

• 回复：回复：I-765 和 I-485 Receipt Notice -老马师- ♀ (53 bytes) () 03/16/2004 postreply 14:55:16