Cancer is a term for diseases where abnormal cells divide uncontrollably and spread to other tissues through the blood and lymph systems. Leukemia is a cancer of the bone marrow that develops when blood stem cells make abnormal blood cells, either myeloid or lymphoid cells. Myeloid stem cells normally develop into red blood cells, platelets, and white blood cells that help fight infection and prevent bleeding.

1. 
Cancer
-Maria Jose Torres

2. What is it ?
 Cancer is a term used for diseases in which
abnormal cells divide without control and are able
to invade other tissues. Cancer cells can spread to
other parts of the body through the blood and
lymph systems.

3. leukemia
 Leukemia is a cancer that starts in the stem cells of the bone marrow
that make blood cells. They develop in either develop myeloid or
lymphoid cells It develops when the blood stem cells in the bone
marrow make abnormal blood cells.
 Myeloid stem cells develop into one of three types of mature
blood cells:
Red blood cells carry oxygen to all tissues of the body.
Platelets form clots in damaged blood vessels to prevent bleeding.
White blood cells called granulocytes and monocytes destroy
bacteria and help to fight infection.

4. Photo