Besides, Macs don't use BIOS. Ivy Bridge and earlier Macs use EFI 1.1, while Haswell and later Macs use UEFI 2.0. There is no way to access UEFI options in a Mac. It's all locked away.
Technically there are a limited number of options available (such as preferred boot device and automatic timed startup), but it's probably best to ask: What are you trying to accomplish?
Technically there are a limited number of options available (such as preferred boot device and automatic timed startup), but it's probably best to ask: What are you trying to accomplish?