Stem cells are cells present in every body that have not yet become specialized to perform particular functions. Scientists believe that someday they can be used to repair damaged tissues and re-grow... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.