What is the average life span of a red blood cell? O a. 180 days O b. 90 days O c. 150 days O d. 120 days

6. What cells produce hemoglobin? A. Megakaryocytes  B. Microkaryocytes  C. Mature erythrocytes D. Immature erythrocytes

84)Formation of erythrocytes occurs in the _______. Group of answer choices Red bone marrow Yellow bone marrow Plasma White bone marrow 85) The circulatory system has only 1 circuit that circulates blood. Group of answer choices False True 86) In the homeostatic regulation of blood oxygen levels, the effector is the ________. Group of answer choices Kidney CO2 Red Bone Marrow Blood Oxygen Levels Lungs 87) For each heart chamber the period of contraction  is called ___________________. Group of answer choices Diastole Systole

If you were in a major accident and needed a large blood transfusion, why is type AB the best to have, in terms of being able to accept the widest range of donated cells?