If someone is killed or injured in crash, a blood sample can be taken from you against your will be True.
What is the composition of blood?
Blood is a fluid connective tissue that moves through the vessels of a circulatory system.
In humans, It has three parts plasma, blood cells and platelets.
Plasma are the main component of blood, majority have water, with proteins, ions, nutrients, dissolved gases.
Plasma maintain blood pH and osmotic balance.
Red blood cells circulate through the body are important for carrying oxygen and carbon dioxide.
It is small, biconcave and do not contain mitochondria or a nucleus. The lack of a nucleus creates more space for hemoglobin.
Platelets or thrombocytes produced by megakaryocytes are responsible for blood clotting .
White blood cells are nucleated and mitochondria. It has role in immune response, recognition and neutralization of invaders such as bacteria and viruses.
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