What does study?
What does phonology study?
The sound system of a language.
What is a phoneme?
To represent the sounds of spoken languages accurately.
What does morphology study?
The structure and formation of words.
What does morphology study?
The structure and formation of words.
Which linguistic level explains the meaning of words and sentences?
Semantics 
What is a morpheme?
The smallest unit of meaning in a language.
Which linguistic level explains the meaning of words and sentences?
Semantics
Which branch studies sentence structure?
Syntax 
Which word contains a prefix?
Unhappy