Instructions: Indicate by asterisks the stereogenic centers present in each of the indicated terpenes in the following question(s).
Place asterisks:
a-santonin 
Definitions:
Incoming Power Lines
Electrical lines that supply power from an external source to a building, machine, or device.
Jump-To-Subroutine Instruction
A programming instruction that causes the execution flow to jump to a specific subroutine or function, and returns once the subroutine is completed.
MCR Instruction
A Master Control Reset instruction in PLC programming that is used to turn off a defined block of outputs regardless of the conditions within the block.
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