Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.

Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.

Graves' disease is caused due to

Choose the correct statement.

The partial pressure of oxygen in the alveoli of the lungs is

Which hormones do stimulate the production of pancreatic juice and bicarbonate?