The most difficult drug addiction to overcome is that of caffeine. crack cocaine. heroin. alcohol. nicotine.

1infants internalize what they take in through their senses and                a.  show no signs of remembering it.      b.  vocalize it.      c.  display it in physical movements.      d.  forget it immediately.2 early experiences have a impact on the architecture of the brain.                a.  decisive      b.  mild      c.  minimal      d.  moderate  3which of the following is an infant's main learning tool in the first months after birth?                 a.  mouth      b.  music      c.  book exposure      d.  hands

Warming up prepares the body for exercise in what way? a. muscularly b. cardiovascularly c. neurologically d. all of the above

The nutrient facts label on a food package lists the following: iron 50%. what does this figure indicate?