Brandon burns and christina santhouse lost neurons due to injury and/or surgery. one potential application of could be to use them to replace or replenish damaged or lost neurons.

The answer is a stem cell.  there is the unspecialized cell that generates or capable of renewing themselves through cell generation. Stem cells are important for living organisms for many reasons. In the 3- to 5-day-old embryo, called a blastocyst, the inner cells give rise to the entire body of the organism, including all of the many specialized cell types and organs such as the heart, lungs, skin, sperm, eggs and other tissues.

is there a multiple choice

because i dont see letters or numbers