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45 minutes • Black & White
Informative discussions with an endocrinologist provide fascinating data on such modern issues as the use of growth hormones in children
and even crueler loneliness
ionic and covalent bonds are investigated
In government
Human Body Series: Respiratory System 45 minutes • Black &The mechanism of breathing and the anatomy of the organs that carry out this activity are brought vividly to life through revealing animation and x ray motion pictures. Additional animation explains how air is cleansed during inhalation and how oxygen is diffused into the bloodstream for use elsewhere in the body. Mouth to mouth resuscitation, the Heimlich maneuver and effective treatment for hyperventilation are discussed by a CPR educator. The basic
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