Which statement describes the condition of the heart at the point indicated in the electrocardiogram? The ventricles are contracting and pushing blood out of the heart to the lungs and body.
The valves between the atria and ventricles close, producing the first heartbeat.
The valves of the aorta and pulmonary artery close, producing the first heartbeat.

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

Fats are the most concentrated form of

Describe the concept of interval training. what is the benefit of this type of training?