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Urea is a nitrogenous waste product formed from the breakdown of amino acids in the liver.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Reabsorption and Secretion
Uric acid is the least toxic nitrogenous waste and is excreted as a semi-solid paste with minimal water loss, mainly in birds and reptiles.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Uric acid is the least toxic nitrogenous waste and is excreted with minimal water loss.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Birds are uricotelic, excreting uric acid to conserve water.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
The liver excretes bile pigments like bilirubin and biliverdin, which are byproducts of hemoglobin breakdown.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
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