The earthworm did not evolve,rather it was created as a worm. It did not come from another species,all of it's ancestors were worms.
A leech is also an annelidia, such as the earthworm.
An earthworm does not have a liver, it also does not have a gallbladder.
subterranean
There is a species of earthworm that has 8 heart chambers.
the brain is essential for the movement of the earthworm. If the brain of the earthworm is removed, the earthworm will move continuously without stop
Earthworm does not have the back bone. Earthworm is invertebrate animal.
Earthworm does not have the back bone. Earthworm is invertebrate animal.
A leech is also an annelidia, such as the earthworm.
An earthworm.
An earthworm does not have a liver, it also does not have a gallbladder.
Earthworm
Earthworm.
a. an earthworm
subterranean
bisexual
Well, an earthworm is one.
subterranean