Vertebrates are the highest group in the animal kingdom. They form a subphylum of the phylum Chordata in the animal kingdom - the subphylum Vertebrates. Vertebrate skeleton pattern diagram There is a spine in the body of vertebrates, which is connecte...
Introduction: As a behemoth that has disappeared from the earth for hundreds of millions of years, dinosaurs, the former overlord of the earth, have long been known to people, but do you know their classification? Now join the special group to learn more about the types of dinosaurs!...
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