On average, bone marrow accounts for about 4 percent of a person’s total body mass. If your patient weighs 200 pounds (90.7 kilograms), what mass of bone marrow will you need for a total replacement?

Many people with blood cancers, such as leukemia and lymphoma, sickle cell anemia, and other life-threatening diseases, rely on bone marrow or cord blood transplants to survive.

Healthy bone marrow and blood cells are needed in order to live. When disease affects bone marrow so that it can no longer function effectively, a marrow or cord blood transplant could be the best treatment option; for some patients it is the only potential cure.

Explanation:

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

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