Määritys: “The life-maintaining fluid which is made up of plasma, red _____ cells (erythrocytes), white _____ cells (leukocytes), and platelets; _____ circulates through the body’s heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.”
Alkukirjain: B
Mistä sanasta on kyse?
