Examlex
Several underwater turbines have been installed to tap the tidal flow of the East River in New York City.
Amniotic Egg
Egg that contains an amnion and other membranes that surround and protect the developing embryo and keep it moist; the evolution of the amniotic egg was one of the adaptations that allowed animals to become completely terrestrial.
Vertebrates
Animals that possess a backbone or spinal column, including fish, amphibians, reptiles, birds, and mammals.
Reptiles
A group of cold-blooded vertebrate animals characterized by scales or scutes, laying shelled eggs, and breathing air, including snakes, lizards, crocodilians, and turtles.
Clade
A group of organisms believed to comprise all the evolutionary descendants of a common ancestor.
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