Question

Land snails are
A) Ureotelic
B) Uricotelic
C) Ammonotelic
D) Both A and C

Answer 1

The land snail is the common name for the terrestrial gastropod mollusks that have shells.Like other mollusks, the land snails have a mantle, and they have one or two pairs of tentacles on their head. Their internal anatomy includes a radula and the primitive brain.

Complete answer:
The reptiles, birds, land snails and the insects excrete nitrogenous wastes as the uric acid in the form of the paste with a minimum loss of water and are called as the uricotelic animals.Insects, land snails, birds, and most of the reptiles which must conserve water, are uricotelic. Excretion of nitrogen mostly in the form of uric acid birds is typical of uricotelic animals.
Additional information:
The ureotelic organisms are the organism which excretes the nitrogenous waste as the urea.The species which excrete ammonia in their waste are called the ammonotelic animals.Ammonia is highly poisonous and the water soluble and is produced by quick diffusion of the water. For example: Ammonotelic is the majority of the marine animals namely cnidarians, echinoderms, fishes, protozoans, larvae or tadpoles of amphibians, crustaceans, poriferans and the platyhelminthes. The species which excrete waste in the form of waste are called the ureotelic animals. The urea is less harmful than the ammonia and requires less water. For example: Organisms include few bony fishes, adult amphibians, fish, cartilaginous fish and mammals including the human. The species that excrete uric acid waste are called the uricotelic organisms. The uric acid is the least poisonous and the least soluble in water, relative to the Ammonia and the Urea.For examples: Birds, snakes and the lizards.
Therefore, the correct answer is option is B.
Note: The ureotelic organism excretes excess nitrogen as the urea.Urea is less toxic and needs less water in comparison to Ammonia. The ureotelic organisms include cartilaginous fish, few bony fishes, adult amphibians and the mammals including humans. The uricotelic organism excretes the uric acid or its salts.