Sign languages, like spoken languages, have grammar and syntax, as well as semantics. explain what your textbook says about the differences in understanding each of these for children who are born deaf and are exposed to sign language from birth versus those who begin to learn sign as teenagers.

Those who first learn sign language as a teen are less likely to comprehend the grammatical unit of the sign. Language comprehends to children due to critical periods.  

Explanation:

American sign language(ASL) is a sign language that has natural property as spoken language carries with the grammatical rules different from the English language. ASL is a language that has been used by the disabled children who were deaf and dumb. This is an expressive language of face and hands. This language is used by many people who have hard of hearing. There is no universal sign language. Every country had a different sign language.

answer: what do you mean

explanation: