Stem and leaf diagrams are formed by splitting the number into two parts, the ‘stem’ and the ‘leaf. For example: In the number 36, the tens would form the stem and the units the leaf.
Stem cells function as a source of new cells to grow or replace specialised tissues. To perform this function, these cells must divide to renew themselves, while some of their descendants ...
A diagram of a healthy macula ... However, research into innovative therapies such as stem cell therapy, gene therapy, and implantable retinal devices offers hope for the future.