| Types of animals based on the osmolarity of their body fluids | TYPES OF NITROGENOUS WASTES EXCRETED BY ANIMALS |
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They allow the osmolarity of their body fluids to match that of the environment.
Osmoconformers
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It is the primary nitrogenous waste for aquatic invertibrates, teleosts and larval amphibians.
Ammonia
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They keep the osmolarity of body fluids different from that of the environment.
Osmoregulators
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It is produced by mammals, most amphibians, some reptiles, some marine fishes and some terrestrial invertebrates
Urea
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It is excreted by birds, insects and terrestrials reptiles.
Uric acid
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