LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

ANIMAL PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Animals excrete urea are called ____
A
Ureotelic
B
Ammonotelic
C
Ureotelic
D
None
Explanation: 

Detailed explanation-1: -Ureotelism is a type of excretion where urea is the main nitrogenous waste material. Animals showing ureotelism are called ureotelic animals. They include many terrestrial amphibians, marine fishes and mammals.

Detailed explanation-2: -Ureotelic animals excrete out their nitrogenous waste in the form of urea. Most terrestrial animals are ureotelic, converting ammonium ions formed during the breakdown of amino acids into urea.

Detailed explanation-3: -Ans: Mammals excrete urea because they do not possess sufficient water available for speedy elimination of ammonia. The elimination of urea requires less water and mammals can afford to concentrate urea in the urine more than the blood.

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