MCQ
Which one of the following statements is incorrect?
- ABirds and land snails are uricotelic animals.
- BMammals and frogs are ureotelic animals.
- CAquatic amphibians and aquatic insects are ammonotelic animals.
- DBirds and reptiles are ureotelic.
Explanation:
Animals which excrete uric acid are called uricotelic. Uric acid crystals are non-toxic and almost insoluble in water. Hence, these can be retained in the body for a considerable time and can be excreted with least possible amount of water. Uricotelic animals include most insects, some land crustaceans, land snails, land reptiles and birds. Animals which excrete ammonia are called as ammonotelic e.g. Many aquatic animals like protozoans, tailed amphibians, tadpoles, aquatic insects, etc. Animals which excrete urea are called ureotelic e.g. man, frog, etc.
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