The most important cardiac stimulant is

The most abundant carbohydrate present in blood is

In old age stiffness of joints is due to the

The release of the egg/ovum from the ovary is called

Impulses from the pace–maker cause the

Yellow color of urine is due to presence of

DNA is made of repeating units called

Hemophilia is extremely rare in women because:

The retention of urea in the blood in the marine environment, as a means to osmoregulate, is best seen in

When urine is passed out several-fold more than in a normal subject, the condition is referred to as