The inner ear is found in all vertebrates, with substantial variations in form and function. The inner ear is innervated by the eighth cranial nerve in all vertebrates.
The thyristor or silicon controlled rectifier, SCR is a device that has a number of unusual characteristics. It has three terminals: Anode, cathode and gate, reflecting thermionic valve / vacuum tube technology.
IRR is the discount rate that reduces the cash flow stream from your investment to a net present value of 0. The term discount rate is used because it adjusts the value of money received in the future to its monetary value in today's buying power.