20 Questions
Which of the following substances are excreted by animals as nitrogenous wastes?
Ammonia, urea, and uric acid
Which form of nitrogenous waste is the most toxic?
Ammonia
How is ammonia primarily excreted by fish?
Through their gills
Which animals mainly excrete urea as their nitrogenous waste?
Mammals, terrestrial amphibians, and marine fishes
Where is urea converted from ammonia in ureotelic animals?
Liver
Which animals excrete nitrogenous wastes as uric acid?
Reptiles, birds, land snails, and insects
What is the advantage of excreting uric acid for uricotelic animals?
It requires less water
Which animals are ammonotelic in nature?
Bony fishes
What is the process of excreting ammonia called?
Ammonotelism
Which animals have kidneys that play a significant role in the removal of ammonia?
Birds
Which organisms have flame cells as their excretory structures?
Flatworms
What is the function of protonephridia?
Ionic and fluid volume regulation
Which organisms have nephridia as their excretory structures?
Annelids
What is the function of malpighian tubules?
Removal of nitrogenous wastes
Which organisms have antennal glands as their excretory structures?
Prawns
What are the excretory structures in vertebrates called?
Kidneys
Which organisms have complex tubular organs called kidneys?
Vertebrates
What is the function of nephridia?
Removal of nitrogenous wastes
What are the excretory structures in insects called?
Malpighian tubules
What is the function of antennal glands?
Removal of nitrogenous wastes
Test your knowledge on the elimination of nitrogenous wastes in animals and the mechanisms involved. Learn about ammonia, urea, uric acid, and other substances, and how they are removed from the body. Explore the various processes and factors that contribute to the elimination of these wastes.
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