1. An apparatus, comprising: an ultrasonic sensor configured for acquiring image information from an object using a plurality of ultrasonic frequencies; a control system comprising one or more processors, the control system being configured for communication with the ultrasonic sensor, the control system being further configured for determining whether the object is part of a live individual, wherein the determining involves analyzing the image information in at least two analysis stages and wherein: one of the analysis stages is a temporal analysis stage that involves analyzing changes in the image information acquired during a time period during which the object was available to the sensor; and the other of the analysis stages involves analyzing the image information to determine whether the object includes at least one manufactured layer.