GENERAL HISTOLOGY

EXCRETORY SYSTEM

KIDNEY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Some animals live in very hot, dry places.Which of the following are adaptations of their kidneys, to increase their chance of survival?I. They have a thicker cortexII. They have longer loops of HenleIII. There is a higher solute concentration in the medulla
A
I and II only
B
I and III only
C
II and III only
D
I, II and III
Explanation: 

Detailed explanation-1: -To keep cool, animals have created mechanisms to encourage air circulation around their bodies and to dissipate heat. As for example Camels have a thin layer of fur underneath their bellies to help lose heat, while a thicker layer across their humps shade them. Polar bears keep on swimming to keep them cool.

Detailed explanation-2: -Animal adaptations The absence of sweat glands, and the concentration of urine are other physical adaptations made by desert animals. Because fat intensifies heat, a unique physical adaptation of some desert animals is the storage of fat in humps or tails, rather than throughout the entire body.

Detailed explanation-3: -Camels are animals adapted to the hot and dry climate of the desert.

Detailed explanation-4: -The animals that you find in a desert, much like the plants you find in a desert, are very good at conserving water. They’re also opportunistic. Whenever water does appear, like after a rain, the plants will soak up as much as they can and store it away for the dry periods. Many desert animals will do the same.

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