Прочитайте текст. Red blood cells are destroyed and replaced at a rate of about 1 a day. These cells...: ответ на тест 1072141 - Английский язык

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Red blood cells are destroyed and replaced at a rate of about 1% a day. These cells are formed in the bone marrow, particularly in the spine and hip bones, the ribs and breast-bone. They are destroyed largely in the spleen.
Blood platelets are about 1/3 as large as red blood cells. They are concerned with blood clotting.
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Red blood cells begin their existence in …