Examlex
A tetrahedral sheet is characterized by a plane of aluminum atoms surrounded by oxygen and hydroxyl groups.
Desert-Living Animals
Animals that have adapted to survive in desert environments, characterized by extreme temperatures and scarce water.
Uric Acid
A waste product formed from the breakdown of purines, excreted in urine, high levels of which can lead to gout and kidney stones.
Protonephridia
Protonephridia are excretory structures found in some invertebrates, such as flatworms, consisting of a network of dead-end tubules connected to external openings.
Flatworm
A group of simple, soft-bodied invertebrates that belong to the phylum Platyhelminthes, characterized by their flattened bodies and lack of specialized respiratory and circulatory systems.
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