It is seven (7) centimeters.
Earthworms don't have eyes, but they do have light-sensitive cells scattered in their outer skin.
The ecological niche for an earthworm is decomposing the soil.
One wold not describe the anatomy of an Earthworm in terms of "layers". For this reason we do not understand what you are asking.
There are many, many species of earthworm. The Common Earthworm, which is the species I think most are used to seeing belongs to the species Lumbricus terrestris.
no
its mouth
An earthworm has 5 eyes, that your answer!!!
Both an earthworm gizzard and teeth in other animals are structures used for breaking down food, but they do so in different ways. The earthworm gizzard is a muscular organ that grinds up food with the help of small rocks, while teeth in other animals cut, tear, and grind food using hard structures made of enamel. Additionally, teeth are present in a wide variety of animals, while the gizzard is a specialized structure found only in earthworms.
It is seven (7) centimeters.
none
3
5
enough to move.
4
4
None