Answer:
1) physical, cognitive, and social development.
2) Those structures already formed grow and develop such as facial features.
3) It is an important sign that the nervous system is developing and functioning.
4) Poverty, malnutrition, lack of stimulus, and poor health.
5) Vision is somewhat organized while hearing is fairly developed.
II) Language acquisition is the process by which humans can perceive and understand a language.
6) Nativist theory that suggests that humans are born with genes that allow them to learn a language and that there is a universal grammar that is part of our genetic makeup.
Behaviorist theory is that language is learned through a complex process of imitation and repetition.
7) Babbling, one-word stage, and two-word stage.
8) Humans have a complex language while chimpanzees just communicate. Single words do not make a language, it is the combination of words what makes a language.
Step-by-step explanation: