FALSE.
I believe otherwise. Animals have their own way of communicating as well, as they have their own language. What we define as language is simply a way to communicate, a way that everyone will understand. Similarly, various types of animals communicate to eachother fairly well.
im not 100% sure but im pretty sure 1. d and 2. a
i hope its right, but im pretty sure it is
Answer: a
Explanation: trust me a smart human hehe