Which of the following statement is true? A Oxygen binding will increase the affinity of the hemoglobin B. In a antartica the oxygen – dissociation curve will move to the right C. Partially saturated hemoglobin will carry four oxygen D. Exercise will shift the oxygen – dissociation curve to the left 43. The sternocleidomastoid muscle when both sides are contracting will _ the neck, but it ones de contracts it will go A Flex: to the same side B. Flex: up C. Extend to the opposite side D. Flex: to the opposite side 44. Lymphocytes can develop and mature in the A Lymph nodes B. Red bone marrow C Spleen D. Tonsils

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