Yes, a worm is an invertebrate because it has no spine.
http://www.can-do.com/uci/lessons98/Invertebrates.html
no a worm is an invertabrate meaning it has no backbone
yes a millipede is an invertabrate. :)
Yes, a fly is an invertabrate; it has no backbone.
Your answer is in the question. Crayfish are invertabrates.
yes it is an invertabrate but it has an exto-sceloton
Invertabrate.
No
no
yes
Yes
No it is an Invertabrate
yes