no crabs aren't vertebrate it is a Crustacean.
invertebrate
Neither. It is not a vertebrate, so it cannot be either. A crab is a crustacean.
no because it do not have a backbone so it is considered invertbrate
I am assuming you mean horseshoe crab, in which case they are invertebrates.
Crustaceans, including crabs, have no spine so are therefore invertebrates. It is an invertebrate, in fact it is a crustacean as it has a hard shell and soft inside. Other crustaceans are lobsters.
crab
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Its not.
A dragonfly is not a vertebrate at all. Dragonflies are insects which are classified as invertebrates.
It depends on what kind of crab it is. What kind of BS answer is that "It depends on the type of crab?" Give examples or just don't say anything!
It's an invertebrate. It has an exoskeleton, so it's supportive structures are on the outside.
Bird