I don't know, try asking santa, or the Easter Bunny. Btw it does have bones, but i dunno bout a back bone.
Vertebrate
Yes It Is A Invertibrate
a grasshopper is an invertibrate
yes yes it is an invertibrate
hag fish is invertibrate having skull but no vertebral column
yes
no its an Arachnid
yes it is
because we have bones
Yes
yes
yes