By approximately 80 years of age, postural sway is similar to that of a

The essential factor in whether or not a fetus has achieved the age of viability is ______

Fill in the blank with correct word

A new dog owner is trying to use classical conditioning to train her dog to blink whenever she says "Blink." She blows into his eyes, then says "Blink," but the dog is not learning to blink at her command. To improve her training technique,

a. not say "Blink" until after the dog has blinked. b. say "Blink" before blowing into the dog's eyes. c. say "Blink" without blowing into the dog's eyes. d. give the dog a treat whenever he blinks.