________ is/are utterances in which a single word is used to capture a variety of meanings

At about what age will an infant learn to recognize his or her name?

a. 1-2 months b. 3-7 months c. 8-12 months d. 16 months e. 24 months

A __________ reinforcer is any reward that satisfies a basic, biological need, such a hunger, thirst, or touch

a) primary b) negative c) positive d) secondary