ANIMAL PHYSIOLOGY
EXCRETION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Lizard
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Sparrow
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Cockroach
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Frog
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Detailed explanation-1: -So, the correct answer is ‘Birds/Snake’.
Detailed explanation-2: -Ureotelic animals excrete nitrogenous waste in the form of urea. Frogs are ureotelic animals when present on land.
Detailed explanation-3: -Frogs are ureotelic as they live mainly on land and therefore they excrete urea as their main nitrogenous waste which is less toxic than ammonia. While Tadpoles are ammonotelic as they live in water and secrete ammonia as nitrogenous waste. Hence option C is correct.
Detailed explanation-4: -The species which excrete uric acid waste are called uricotelic organisms. The excreta of the uricotelic organisms are insoluble solids or semi-solid and requires less water. For example: Terrestrial arthropods (including insects), lizards, snakes, birds, etc.