11.During teh development of an embryo, the formation of brain marks the beginning of organ formation. Eye in a vertebrate develos from midbrain. If after the formation of brain, the mid brain is destroyed, then what will be the resultant effect ?

12.Iron is present in the blood in the form of a

13.All the veins carry deoxygenated blood, except

14.The thyroid gland is situated near Which of the following organs ?

15.Which of the following statements about liver ate true ? 1. It secretes bile enzyme. 2. It forms fibrinogen that helps in clotting of blood. 3. It produces heparin which prevents blood clotting in blood vessels. 4. It is aggected by excessive alcohol intake.