Identify the set of animals which excrete the same substance as their chief nitrogenous waste.
Hydra, shark, rohu
Frog, camel, locust
Lizard, parrot, silkworm
Katla, electric ray, cobra
Reptiles (e.g., lizard), birds (e.g., parrot), insects (e.g., silkworm) and land snails are uricotelic.