All kinds of worms
Earthworm does not have the back bone. Earthworm is invertebrate animal.
a verbrate is a animal with a a back bone
An invertibrate.
if it does not have a back bone
An Animal with a Backbone is called a vertebrate.
animals with no back bones
a invertebrate is a animal without a back bone
its the heel bone at the back of the tarsus
An invertebrate is an animal that does not have a back bone (spine).
Earthworm does not have the back bone. Earthworm is invertebrate animal.
an invertibret means that the animal has no back bone
Invertebrate