What is sufficient to support the testimony of a single witness?

Unless physically impossible or inherently improbable, the testimony of a single witness is sufficient to support a conviction. (People v. Young (2005) 34 Cal.4th 1149, 1181.) " ' "To warrant the rejection of the statements given by a witness who has been believed by the [trier of fact], there must exist either a physical impossibility that they are true, or their falsity must be apparent without resorting to inferences or deductions. [Citations.] Conflicts and even testimony which is subject to justifiable suspicion do not justify the reversal of a judgment, for it is the exclusive province of the trial judge or jury

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