What is the term for play in which two or more children actually interact with one another by sharing or borrowing toys or materials, although they do not do the same thing?

Which of the following people would the BMI be least applicable to?

a. a 44-year-old accountant b. a 20-year-old truck driver c. a 29-year-old professional football player d. a 70-year-old retired police officer

In Piaget's theory, the general process by which infant schemas are elaborated, modified, and developed is called:

a. adaptation b. organization c. symbolic representation d. iteration