Question

How are Vertebrates classified ?​

Answer 1

Answer:

Vertebrates are members of the phylum Chordate. Therefore, vertebrates are sometimes called chordates. All chordates contain a spinal cord. One way that scientists classify different subgroups of vertebrates is based on how organisms obtain oxygen. Vertebrates breathe either through their skin, gills, or lungs. Being endothermic or exothermic is another classifier of vertebrate subgroups. Endothermic vertebrates are warm-blooded, while exothermic vertebrates are cold-blooded. The third classifier used to sub-categorize vertebrates is reproduction.

Answer 2

Answer:

Vertebrate Classification. Vertebrates can be subdivided into five major groups: fishes, amphibians, reptiles, birds, and mammals. Amphibians, reptiles, birds, and mammals are ranked as classes. The fishes includes five different classes: Myxini, Hyperoartia, Chondrichthyes, Actinopterygii and Sarcopterygii.

Explanation:

Vertebrates have five key characteristics that are common to all vertebrates.

• They have a backbone.

• They have a skull.

• They have an endoskeleton.

• They have bilateral symmetry.

• They have two pairs of appendages.

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