What is blood made of and what does it do inside our bodies?
Why do I have to know my blood type?
What are the most common blood types?
Is it true that all cold-blooded animals have blue blood?
What causes blood clots?
My grandmother had a blood transfusion. What is that?
If blood is red why do veins look blue?
What is the best blood type to have?
Why do you get a scab when you get a cut?
What is anemia?
What is thalassemia? I know it's a sickness, but what causes it?
What is a blood clot?
How much blood do people have?
Is there another part of the body that can produce blood apart from bone marrow?
Why do we have to have blood tests?
How much blood do you lose when you have a really bad cut?
What is hemophilia?
What is a blood vessel and what does it do?
What happens when blood rushes to your head?
What is bone marrow?
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