That's the way they are, they have an exoskeleton.
Maybe for something that small bones are not a good option
no
Genus Chordata is animals with backbones; Spiders do not have a spine, therefore are not Chordata.
A Tarantula is NOT a vertebrate.
All spiders do not have backbones.
They are invertebrates. They do not have back bones.
no they dont
no they dont
No. Nor do any Spiders have a backbone. Spiders' structural support comes from their hard external body panels. They do not have any bones.
they dont have backbones.
no, they dont have backbones
i dont think they do.
yes they are they dont have backbones