Nitrogenous waste is excreted in the form of pellet or paste by :
- Ornithorhynchus
- Salamandra
- Hippocampus
- Pavo
Answer
(4) Pavo
Solution
As per NCERT, reptiles, birds, land snails and insects excrete nitrogenous wastes as uric acid in the form of pellet or paste with a minimum loss of water; they are called uricotelic animals.
Ornithorhynchus (platypus, a mammal) and Salamandra (an amphibian) are ureotelic; Hippocampus (sea horse, a bony fish) is ammonotelic.
Pavo (peacock) is a bird ⇒ uricotelic.
Answer: (4)