Question

State two structural modification of the kidneys of deserts animals like kangaroo rat

Answer 1

1) Long loop of Henle so that reabsorption of water can takes place to a great extent.
2) Small glomeruli so as to reduce rate of ultrafiltration.

Answer 2

"Kangaroo rats are desert rodents and are found in western North America.

They survive on seeds high in carbohydrates and get all the water they need from their food.

Their kidneys are structured according to their survival needs. Two structural modifications of the kidneys of desert animals like kangaroo rat are:

• Long loops of Henle to help in the reabsorption of water and sodium chloride from the urine. Hence they are able to excrete waste without losing much water.

• Small glomeruli to reduce the rate of ultrafiltration.

"