In frog, the Renal portal system is a special venous connection that acts to link

Solution (By Examveda Team)

In frogs, the renal portal system is a special venous system that carries blood from the posterior (lower) parts of the body directly to the kidneys.

This system allows the kidneys to filter blood coming from the hind limbs and other lower regions before it returns to the heart.

The main function of this system is to aid in the excretion and filtration of waste products from the blood.

Therefore, the renal portal system links the kidney and the lower part of the body, not the liver or intestine.

This is a unique feature seen in amphibians like frogs and is not present in mammals.