WebMammals and reptiles (including birds) are the only two extant groups of amniotes. The term tetrapods is introduced in Amphibians; the term amniotes is introduced in Reptiles. … WebVertebrates are animals with backbones and include all fish, amphibians, reptiles, birds, and mammals. A backbone is made up of a series of small bones, called vertebrae. ...

Vertebrate Animals for kids: Mammals, fish, birds, …

WebThere are three living groups of amphibians (caecilians, salamanders, and anurans [frogs and toads]) that, collectively, make up more than 7,300 amphibian species. One similar tendency among amphibians has been the evolution of direct development, in which the … Take this Pop Culture True or False quiz at Encyclopedia Britannica to test your … smallest powered tabletop rca speakers

What do birds, reptiles, amphibians, and fish all have in common?

Weban animal without a backbone. radial symmetry. the equal sections that results from a cut through an organism in the center from any plane or direction. sessile. fixed in one place or immobile. symmetry. a correspondence in the size, form, and arrangement of animal parts on opposite sides of a dividing line. vertebrate. WebAll vertebrates belong to the phylum Chordata. They include fish, amphibians, reptiles, birds, and mammals. Summary Vertebrates have a backbone, but invertebrates do not. Except for the chordates, all animal phyla consist only of invertebrates. Chordates include both vertebrates and invertebrates. Review WebOct 1, 1991 · Fish, reptiles, amphibians, birds and mammals all have bones. Fish, reptiles and amphibians are cold-blooded animals. Scientists believe that fish were the first … song of christmas song