There is a ______ percent overlap in genetic heritage between each parent and his or

Preschool children spend _____ in physical activity, about _____ per week:

a. little time; 5 hours c. quite a bit of time; 25 hours b. a moderate amount of time; 10 hours d. most of their time; 40 hours

The theory known as _____ posits that traits which help organisms survive and reproduce are more likely to be passed on to subsequent generations.

A) phrenology B) nativism C) natural selection D) functionalism