Blood

How much blood does an adult have?

• 5 liters

• 10 liters

• 8 liters

• 20 liters

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What system is made of the heart, blood vessels, and blood?

• skeletal system

• muscular system

• digestive system

• cardiovascular system

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What is blood made of?

• oxygen and plasma

• red blood cells and white blood cells

• plasma, red blood cells, white blood cells, and platelets.

• plasma and platelets

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What is plasma?

• only white blood cells

• only red blood cells

• fluid part of blood

• hemoglobin

What are the most common blood cells?

• red blood cells

• white blood cells

• platelets

• plasma

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Which cells receive oxygen from red blood cells?

• all cells

• only skin cells

• only muscle cells

• only bone cells

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What attaches to oxygen as you breathe and carries oxygen on red blood cells?

• plasma

• hemoglobin

• platelets

• bone marrow

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Where are platelets made?

• plasma

• hemoglobin

• bone marrow

• Pottery Barn

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Why do platelets clump together?

• to produce oxygen

• to reduce oxygen

• to produce blood loss

• to reduce blood loss

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What are pathogens?

• disease-causing bacteria, viruses, and other microorganisms

• large platelets

• antibodies

• tiny fibers

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