The purpose of this unit is to provoke discussion and thought by the reader. Topics considered include cloning; amniocentesis and sex determination; predicting abnormalities and abortion; transplants; life prolonging machines; cryogenics; prenatal surgery; sperm and egg banks; radiation; psychobehavior, ESB (electrical stimulation of the brain), and mind altering drugs; euthanasia; inequalities in care; germ and biological warfare; machine technology; human experimentation; balanced populations; green revolution (agricultural changes which have taken place over the last 25 years); greenhouse effect; ozone; noise, sewage, metals, and solid waste; and pesticides. Two tests are included, one over the entire unit and another over the content presented in the first three sections. (Author/JN)