Samsung Galaxy Ace 4 smartphone with 4.00-inch 480x800 display powered by 1GHz processor alongside 512MB RAM and 5-megapixel rear camera.
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
Chronic lymphocytic leukemia (CLL) is a type of cancer that affects the blood and bone marrow. Learn about outlook and survival rates. Chronic lymphocytic leukemia (CLL) is a type of cancer that affects the blood and bone marrow. Bone marrow is a soft, spongy substance within bones that produces blood cells. CLL is the result of various genetic mutations in the DNA of cells that produce blood. The exact cause of these mutations is unknown.