Which of the following is not an indication that a communication system is based in the biology of its users:
(a) Being species specific
(b) Being universal to members of the species
(c) Being made of sounds and symbols
(d) Being affected by the environment
الله لايهينكم مره اشوف الأجابة الأولى الصح
مره اشوفها الثالثه
ابي تعتمدون لي على وحده