A truly professional speaker who knows her subject very well should "wing it" so the presentation will seem natural and spontaneous

During the meeting, Sam explained the sales strategies for the month and his team agreed to follow the approach. Here, Sam and his team acted as

a) source and receiver b) channel and message. c) noise and knowledge. d) clarity and ambiguity.

A biologically shared innate signal system in which a particular species uses symptoms for its communication with other members of the species is an ______ code.

a. arbitrary b. iconic c. ontogenetic d. intrinsic