A waxy coat called ( cuticle)
the structure of the trachea is much like that of a penis. The tube is called the shaft and the atoms apple is like the scrotium harvesting the testes.
the liver is part of your digestive system it contains an enzyme called milliphosiphis. it is the tube that is connected to the anus.
The tube foot
The tube foot
It is a structure that looks like a tube
The space within a tube-like structure is called a lumen. Parts of the body with lumens include veins and arteries.
It's called a nerve.
from a tube-like structure
The difference between vascular and non-vascular is that vascular have a tube like structure and non vascular do no have a tube like structure
The tube like part of the mouth of all Lepidoptera (butterflies) is called probiscus. It is specifically designed to allow the animal to drink nectar from deep within the structure of a flower.
That tube is called as urethra.
Lava tubes.