Which protein is essential for the blood clotting process?

What is diapedesis?

Which one of the following mammalian cells is not capable of metabolizing glucose to carbon-dioxide aerobically?

If $RBCs$ are placed in distilled water,the corpuscles will

$A$ person with an unknown blood group under the $ABO$ system has suffered significant blood loss in an accident and requires an immediate blood transfusion. $A$ friend,who has a valid certificate of their own blood type,offers to donate blood without delay. What would be the blood group of the donor friend?

Write the feature that distinguishes between the two: Plasma and Serum.