Sickle cell anemia is one of a group of disorders known as sickle cell disease. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. Normally, the flexible, round red blood cells move easily through blood vessels.
The density of ice does not affect its melting rate because there is more to melt in the same size but adding objects will affect the melting rates because there is less to melt