Students trace the generation of the formed elements of blood from bone marrow stem cells, and then learn the role of hemopoietic growth factors in promoting the production of the formed elements.

The advantages and disadvantages of hydrogen fuel cell technology as a source for energy production are outlined. There is still much to be done in research and development before this energy source can be marketed widely.

Describes how sperm cells are formed through the process of spermatogenesis and some factors that can negatively affect sperm formation.