Although nonhuman primates most certainly can communicate orally with each other and with humans (if trained), these utterances seem to lack any significant:
A) syntax.
B) semantic aspects.
C) emotional overtones.
D) reliability from one time to another.

Question

Quizplus · Accepted Answer

Nonhuman primates' oral communication lacks syntax, or a systematic way of organizing words and phrases to convey meaning. While they may use different vocalizations and gestures to communicate, they do not combine them in a consistent, rule-governed manner.

Although Nonhuman Primates Most Certainly Can Communicate Orally with Each