Yes, they don't have a bony skeleton. Their hard outer casing is called an exoskeleton and gives the body its shape.
yess
yes they are
yes
they are invertibrates I mean they are including of a family of a invertibrates animals.
No they have bilaterial symetry.
Invertibrates
They are invertibrates
Invertibrates.
invertibrates
under the ground
No. Worms are invertibrates.
dont step on them.