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What else can I help you with?
Is a scorpionfish a vertabrate?
A scorpionfish is indeed a vertebrate. They belong to the Phylum Chordata which include all vertebrated, notochord possessing fish. Fun fact: They are also called "dragonfish" according to Wikipedia!
The first vertebrates to evolve were?
This is still in dispute, however, most scientist believe it was a creature from the Cambrian period of the Paleozoic era that we call the Pikaia. It wasn't a fish, but as potentially the first vertebrate, fish probably evolved form it. Some scientists theorize that it was a kind of worm. It had a backbone-like structure and shared other traits most commonly found in vertebrated such as: It was bilaterally symetrical, its head was distinct from its body, and its eyes were in the front of its head.
Is a Mexican axolotl a vertebrate or an invertebrate?
Vertebrates. They are salamanders. Salamanders are amphibians. Amphibians are vertebrates. Like us (and unlike insects, snails, and jellyfish) they are descended from ancestors with backbones.
