1) This blood components is 55% of the whole blood, this is a... a) Red blood cell(RBC) b) White blood cell(WBC) c) blood plasma d) Platelets 2) Red blood cell's function is to a) Transport oxygen b) To kill the pathogen inside you're body c) To clot blood d) Carries blood cells e) carries dissolved nutrient f) carries hormones and co2 3) This component of the blood is yellowish staw colored, I am a... a) Red blood cell(RBC) b) white blood cell(WBC) c) Blood plasma d) platelet e) Erythrocytes f) Leukocytes 4) One of the RBC's special characteristic is a) It has a non- biconcave shape b) The lifespan is around 100-129 days  c) Part of the immune system d) Clots the blood e) prevent blood loss f) killl germ 5) wich of the following is NOT a special characteristic of the RBC (red blood cell) a) It has a biconcave shape  b) it has a nucleus  c) its lifespan is 100 days d) its is elastic and can change shape 6) Other word for WBC (white blood cell) a) erythrocytes b) leucocytes c) thrombocyte 7) What is the term for WBC when they move out of the blood stream? a) Diapedesis  b) Amoeboid movements c) phagocytosis d) positive chemotaxis  8) Wish of these blood components (not blood plasma) has the greatest amount? a) WBC (white blood cell) b) RBC (red blood cell) c) platelets 9) red blood cells does not contains hemoglobin a) true b) false 10) WBC has a nucleus and its colorful a) true b) false 11) White blood cell produce... a) antibodies b) oxygen c) nutrition 12) Platelet does? a) give an immune support for the body b) help gives oxygen throughout the body c) clot the blood to stop a bleeding 13) Platelets are form in the bone marrow a) true b) false 14) the characteristic of platelets is fragment of cells a) true b) false 15) The platelets are ... the size of RBC a) one time b) twice c) five times d) half 16) how do WBC kill the pathogen? a) eat them b) chase them c) engulf 17) the term of WBC when they engulf pathogen is called... a) amoeboid movement b) phagocytosis c) positive chemotaxis d) diapedesis

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