Is a misrepresentation or concealment in an insurance application grounds for rescission of a policy?

Sections 331 and 359 of the Insurance Code provide that material misrepresentations or concealments in an application for insurance are grounds for rescission of the policy. Section 334 specifies that "[m]ateriality is to be determined ... solely by the probable and reasonable influence of the facts upon the party to whom the communication is due...." "The fact that the insurer has demanded answers to specific questions in an application for insurance is in itself usually sufficient to establish materiality as a matter of law." (Thompson v. Occidental Life Ins. Co. (1973) 9 Cal.3d 904, 915-916, 109 Cal.Rptr. 473, 513 P.2d 353.)