Stem cells are a class of undifferentiated cells that are able to differentiate into special cell types.
They are important because they represent an area in medicine, because they have the potential to regenerate and repair damaged tissue.
Not all stem cells come from embryos but also bone marrow, your teeth and other places.
Answer:
Profoundly different in physical appearance and demeanor—Jefferson was tall, elegant and philosophical, while Adams was short, stout and prone to vivid outbursts of emotion—the two men nevertheless became close friends.
Answer by YourHope:
Hi! :)
the image shows a medical advancement achieved by what civilization?
- han china!
:)