Cognitive development in childhood.
Piaget's theory of development mostly concerns with cognitive develompent in children, either quantitative or qualitative. Under his theory, there are many different phenomena that we can test today and see on which stage of cognition a child is.
Answer:
D
Explanation:
An acidic environment can change an enzyme's shape and therefor its function.
You don’t explain very well but the sentence it’s true
U.S. to Central America or Mexico