Question

Blood differs from the other connective tissues because

• A. Plasma of blood is not entirely secreted by blood cells
• B. Blood corpuscles are not formed in the blood
• C. Fibres are absent in the blood
• D. All of the above

Answer 1

The correct option is D All of the above

Though blood is like a connective tissue within the vertebrate body, this is different from the other connective tissues. Blood is actually the bodily fluid that delivers the necessary nutrients and oxygen to the cells of the body and carries away all the metabolic wastes from it. In vertebrates, blood is made up of RBCs, WBCs, platelets suspended in blood plasma. Further, these blood cells are formed in the bone marrow through a process called hematopoiesis. Blood plasma is actually 92% water and 8% plasma proteins which are produced in the liver. Fibers are absent in the blood.

Hence the correct option is D.