One wold not describe the anatomy of an Earthworm in terms of "layers". For this reason we do not understand what you are asking.
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.
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.
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
An earthworm has 5 eyes, that your answer!!!
It is seven (7) centimeters.
I believe thre types of lungs are the differance. Not quite sure the name of the earthworm lung but spiders have what are called book lungs that have several layers that resemble "pages" flf
3
none
only one
5
None
4
enough to move.
4
Earthworms don't have eyes, but they do have light-sensitive cells scattered in their outer skin.