Answer:
takes sound waves and turn them into signals
Red blood cells pick up oxygen in the lungs. Blood travels away from the heart and lungs through the arteries. Red blood cells drop off oxygen to the cells through tiny tubes called capillaries. Blood then returns to the heart through the veins and the cycle begins again.
Answer:
MY NAME IS KAITLYN SUPPPP
Bone marrow contains blood I think, so it would be considered a donor procedure since you're donating blood.
