I-765 和 I-485 Receipt Notice

今天受到I-765和 I-485 Receipt Notice，很高興，有幾個問題，請教大家：
1。I-765 Receipt Notice 說：
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 說：
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.

兩者有何區別？什麽是Biometrics?

Thanks a lot.
老馬師