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.
Animal without back bone
a invertebrate is a animal without a back bone
An invertebrate is an animal that does not have a back bone (spine).
its the heel bone at the back of the tarsus
Earthworm does not have the back bone. Earthworm is invertebrate animal.
The vertebral column.
an invertibret means that the animal has no back bone