The various states of arousal and activity that an infant demonstrates are regulated by
A) hormonal changes.
B) neurological "firing."
C) an internal "clock."
D) the way their parents treat them.

Question

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The Answer of The various states of arousal and activity that an infant demonstrates are regulated by
A) hormonal changes.
B) neurological "firing."
C) an internal "clock."
D) the way their parents treat them.

The Various States of Arousal and Activity That an Infant