No you have just one fingerprint.
I personally would say that finger print readers are very reliable. They are nearly full-proof, and are fast and secure.I would have some kind of backup though just in case something does go wrong. Maybe a password?
there are many laptops with fingerprint scanners are available in the market.UPEK Eikon TCRD4 USB Fingerprint Reader - 1 x USB - Finger Print Reader is the example of such kind of laptop.HP Business Elitebook 8560P 15.6" Notebook is another example of such kind of laptops.
Depends on the kind of job you're applying for.
BIOS
A fingerprint is unique only to the person whose figer it is. One of a kind.
Broke. There are interface connectors/ports, fan ports, and slots, for add on cards. All motherboard ports. If there is a hole with out some kind of port,it is not for anything.
external
external
Skin or scales
Most fish have external fertilization. External fitilization is when the outside of a female body.
a biometric sensor