Mag Nif Rapid. 1  The Mag Nif Rapid is a simple machine that runs on two C batteries to slot your change into its plastic holders, which also hold paper rolls for easy counting and exchange. If the tubes get full, however, everything is recombined in a single overflow tray.
22 23 stem cells travel through the bloodstream, and eventually, to the bone marrow, where they begin to produce new white blood cells, red blood cells, and platelets. It takes 10â14 days for the newly produced blood cells to enter the bloodstream in substantial numbers.
Though some experiments have shown that adult stem cells can be useful, the most promising results come from embryonic stem cells derived from a 5-7 day embryo and embryonic germ cells, derived from aborted fetuses. Each of the sources of stem cells poses its own ethical questions.dult tissues also contian stem cells, ulike that of the embryonic stem cells and embryonic germ cells these are generally multipotent and only develop into cells of a specific tissue or organ type. These cells are in many types of adult tissues to replenish cells that wear out.