prietika
Roundworms have long, cylindrical bodies that taper at both ends. They have a complete digestive system with a mouth and an anus, and their bodies are covered in a protective cuticle. Roundworms also have a fluid-filled body cavity called a pseudocoelom.
It is called helminthology
Roundworm can also be called nematodes.
The posterior opening of the digestive tract in a fetal pig is called the anus. It is the terminal end of the gastrointestinal system where waste material is expelled from the body. The anus is located at the posterior end of the pig, opposite to the mouth which is at the anterior end.
They are called stomata, openings or pores in the epidermis of leaves.
Bilateral symmetry.
orfices
It is in general called a "digestive" It is in general called a "digestive"
Digestive organs working together is called the digestive system.
Sphincter muscles. They are smooth muscles found in various parts of the body, such as the digestive system and urinary tract, and control the opening and closing of tubes or openings.
These are called "stomata".
They are called "clearings" or "glades".