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.Define blood.[Refer Q1,P.37]2. Describe composition of bloodRafar 02.P 371

Answer» <p>the red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body.</p> <p>Composition of blood</p><p>Blood is classified as a connective tissue and consists of two main components:</p><p>Plasma, which is a clearextracellularfluid</p><p>Formed elements, which are made up of the blood cells andplatelets</p><p>The formed elements are so named because they are enclosed in a plasma membrane and have a definite structure and shape. All formed elements are cells except for the platelets, which are tiny fragments of bone marrow cells.</p><p>Formed elements are:</p><p>Erythrocytes, also known as red blood cells (RBCs)</p><p>Leukocytes, also known as white blood cells (WBCs)</p><p>Platelets</p> <p>thanks</p>


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