Risk of neural-tube defects may be substantially reduced by a diet adequate in ______

Compared to boys, girls hear twice as many ____________ by the time they are 32 months old

a. diminuitives c. motherese. b. direct " no" responses. d. child-directed speech.

Harvey, age 3, can probably

A) gallop and skip with one foot. B) copy some numbers and simple words. C) zip and unzip large zippers. D) ride a tricycle rapidly and steer smoothly.