Which is a reason that language acquisition appears to be biologically predisposed?

There are a number of resources in which human beings can interact with one another using signs and sounds, but there are some written and verbal form of mediums or languages in which different people can interact with one another.

Explanation:

Nativist theory: According, to the theory the genetic sequence or the DNA of each organism has the capacity to store information regarding different languages. Making it more simple, we can say that inside the human brain there is an inbuilt system to store information regarding various languages and there basic structure (grammar). Genetics and Inbuilt system inside the Human brain:

Often, we say there is some genetic or more over a medical issue in a person's body which leads to loss of information and handicaps the effected person with no sense of communication. Just because there is a portion of brain which is associated with the language and the information associated with it. And genes play a vital role in knowing the basics of a language, as it shapes the communication for different beings.