<span>I suspect this question should read "How long does a red blood
cell live." A red blood cell lives for between 100 and 120 days. It
takes 7 days for a new red blood cell to develop from stem cells. Stem
cells are similar to base cells. They can also be seen as a general
template from which specialized cells are made. Stem cells can be taken
from a newborn baby's umbilical chord or extracted from an adult blood
donor's blood.</span>
<span>It leads to an increase level of biodiversity.</span>
4 deletion
Explanation:
deletion is a type of genetic mutation involving the removal of a base pair
They are made of the same material, a number of substances, common to all, which show a unit of composition.