Question 1
The cell that is the progenitor of all the types of blood cells is called the
◦ pluripotent hematopoietic stem cell.
◦ megakaryocyte.
◦ committed progenitor cell.
◦ reticulocyte.
◦ progenitor.
Question 2
The percentage of cells in marrow that become white blood cells is about ________%.
◦ 75
◦ 25
◦ 10
◦ 50
◦ 90