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Vertebrates are a group of animals that have a backbone or spinal column. The backbone is a series of bones called vertebrae that are arranged in a line from the head to the tail. Vertebrates are a diverse group of animals that includes fish, amphibians, reptiles, birds, and mammals.
Vertebrates are characterized by several other features, including a skull, a well-developed brain, and an internal skeleton. They also have a closed circulatory system, meaning that the blood is contained within vessels. Vertebrates have evolved a range of adaptations that allow them to live in various environments, from aquatic to terrestrial.
Vertebrates are essential components of many ecosystems and play critical roles in food webs and nutrient cycling. They are also of significant economic, cultural, and scientific importance to humans.
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